A juvenile sharp-shinned hawk in Parrish, Florida.
Click for animation of feeding sharp-shinned hawk
Immature (nominate group)
Endangered subspecies venator, endemic to Puerto Rico
Close-up of a network of Acropora polyps
Small purple colored thresher caught at Pacifica Pier, California
Ambystoma kansensis (Adams 1929) fossil
Tiger salamander (Ambystoma tigrinum)
Phylogenetic tree showing relations among Ambystoma species and outgroups: For example, the sister taxon to Ambystoma macrodactylum is Ambystoma laterale, meaning they share a single common ancestor and are each other's closest living relatives.
Yellow-billed duck, Anas undulata
Northern pintail, Anas acuta
Green-winged teal, Anas carolinensis
Anas blanchardi fossil
Green-winged teal ( A. carolinensis), drake in nuptial plumage (note vertical white stripe from shoulder)
Male in nuptial plumage (above) and female.
Note typical wide white wing stripe and conspicuous face markings of male, the colours of which give the name to the colour teal.
Drake in eclipse plumage (rightmost bird), hen and young
Wintering birds at Purbasthali, Burdwan District of West Bengal (India)
An American black duck (top left) and a male mallard (bottom right) in eclipse plumage
Iridescent speculum feathers of the male
A group of mallards quacking
Owing to their highly 'malleable' genetic code, mallards can display a large amount of variation,[1] as seen here with this female, who displays faded or 'apricot' plumage.
Male mallard, Sweden 2016
Female Mallard with five ducklings (Lac Archambeault, Québec)
Egg, Collection Museum Wiesbaden
Illustration by Carl Friedrich Deiker (1875)
Several drakes swim in a pond.
The last male Mariana mallard
George Hetzel, Mallard still life painting, 1883–1884
Map of the Roman Empire under Hadrian (ruled 117–138), showing the then homeland of the Angles (Anglii) on the Jutland peninsula in today's Germany and Denmark
The map shows both the Anglia (Angeln) and the Schwansen peninsulas
Possible locations of the Angles and Jutes before their migration to Britain.
Manuscript of Bede
Angles, Saxons and Jutes throughout England
Anolis carolinensis on Star Jasmine, South Carolina, demonstrating camouflage
Carolina anoles fighting
Anole displaying at its reflection
Carolina anole licking
Carolina anole eating a moth
Carolina anole eating a dragonfly
Carolina anoles mating
Juvenile male
Typical freshwater drum, Lake Jordan, Alabama (released)
Architectonica (Maxima-group) consobrina
Architectonica plicata, a fossil species from the London Clay, Eocene; Barton cliff, Hampshire, England
Restoration of Arctodus simus
Three shapes on a square grid
The combined area of these three shapes is approximately 15.57 squares.
A square made of PVC pipe on grass
A square metre quadrat made of PVC pipe.
A diagram showing the conversion factor between different areas
Although there are 10 mm in 1 cm, there are 100 mm2 in 1 cm2.
A rectangle with length and width labelled
The area of this rectangle is lw.
A diagram showing how a parallelogram can be re-arranged into the shape of a rectangle
Equal area figures.
A parallelogram split into two equal triangles
Two equal triangles.
A circle divided into many sectors can be re-arranged roughly to form a parallelogram
A circle can be divided into sectors which rearrange to form an approximate parallelogram.
A blue sphere inside a cylinder of the same height and radius
Archimedes showed that the surface area of a sphere is exactly four times the area of a flat disk of the same radius, and the volume enclosed by the sphere is exactly 2/3 of the volume of a cylinder of the same height and radius.
A diagram showing the area between a given curve and the x-axis
Integration can be thought of as measuring the area under a curve, defined by f(x), between two points (here a and b).
A diagram showing the area between two functions
The area between two graphs can be evaluated by calculating the difference between the integrals of the two functions
American mastodon arm bone with A. simus tooth marks
3-lobed larval phase of Argyrotheca cordata, 180μm, lateral view, top apical lobe with long cilia, mid-section mantel lobe, with ventral cilia (left) and 4 bundles of setae (2 visible), bottom pedical lobe, without cilia
Figurine of Astarte with a horned headdress, Louvre Museum
Astarte riding in a chariot with four branches protruding from roof, on the reverse of a Julia Maesa coin from Sidon
Fragment of a crudely carved limestone stela showing king Thutmose IV adoring a goddess (probably Astarte). From Thebes, Egypt. 18th Dynasty. The Petrie Museum of Egyptian Archaeology, London
Phoenician figure representing an ancient Mideastern deity, probably the goddess Astarte, called the Lady of Galera (National Archaeological Museum of Spain)
Ring-necked duck female Houston, Texas
Drake canvasback stretching wings
Tubers of Sago Pondweed (Stuckenia pectinata), a favorite food of the canvasback
Baculites specimen in the field; western South Dakota, Pierre Shale, Late Cretaceous. Part of the phragmocone (left) and part of the body chamber (right) are present.
Baculites showing sutures and remnant aragonite; western South Dakota, Late Cretaceous.
Baculites from the Late Cretaceous of Wyoming. The original aragonite of the outer conch and inner septa has dissolved away, leaving this articulated internal mold.
Barbatia foliata
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Ripening Ascolano olives in Corning, California.
Barnea at veraison
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Olives (CAILLETIER) CL. J Weber (6) (23148311055).jpg
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Coratina at different stages of ripening
Descriptive catalogue of deciduous fruit trees, citrus trees, olive trees, and grape vines - ornamental trees, shrubs and roses (1902) (20257197963).jpg
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Olives trees at Scala Sotiros.jpg
B. isis jaw muscles
Caudal vertebra from Owen 1839
Skeleton of B. isis at Wadi El Hitan
Albert Koch's "Hydrarchos" fossil skeleton from 1845
Albert Koch's "Hydrarchos" fossil skeleton from 1845
B. isis hind limb
Ruffed Grouse by John J. Audubon c. 1861
Grey morph
Displaying male
Egg, Collection Museum Wiesbaden
Nest with large clutch
Snow hole and wing tracks of a grouse as it burst out of the snow when approached
Yellow plumage of gosling
In the grass in East Hills, New York
Flock in flight
Nesting in Wales
Approaching to beg for food in a Manchester park, a learned behavior
Cleaning feathers, Oxfordshire
Male goose carefully watches nearby humans in Winnipeg
Eggs, collection Museum Wiesbaden, Germany
Geese and goslings in an English canal, showing formation
Resting in a pond during spring migration, Ottawa, Ontario
Low flyover by five Canada geese
Canada geese instinctively nest on higher ground near water. This female is nesting on a beaver lodge.
Family in builders' yard, Salem, Oregon: The mother goose had built a nest on an aggregate pile.
Roosting in a parking lot
A Canada goose feather recovered from Engine #1 of the Airbus A320 involved in US Airways Flight 1549. The aircraft was ditched in the Hudson River after its engines ingested several Canada geese.
Ruffed Grouse by John J. Audubon c. 1861
Grey morph
Displaying male
Egg, Collection Museum Wiesbaden
Nest with large clutch
Snow hole and wing tracks of a grouse as it burst out of the snow when approached
Yellow plumage of gosling
In the grass in East Hills, New York
Flock in flight
Nesting in Wales
Approaching to beg for food in a Manchester park, a learned behavior
Cleaning feathers, Oxfordshire
Male goose carefully watches nearby humans in Winnipeg
Eggs, collection Museum Wiesbaden, Germany
Geese and goslings in an English canal, showing formation
Resting in a pond during spring migration, Ottawa, Ontario
Low flyover by five Canada geese
Canada geese instinctively nest on higher ground near water. This female is nesting on a beaver lodge.
Family in builders' yard, Salem, Oregon: The mother goose had built a nest on an aggregate pile.
Roosting in a parking lot
A Canada goose feather recovered from Engine #1 of the Airbus A320 involved in US Airways Flight 1549. The aircraft was ditched in the Hudson River after its engines ingested several Canada geese.
Fowler's toad in leaf litter
Eastern American Toad in Ohio
Detail of parotoid glands
Fossil shell of Bathytoma cataphracta from Pliocene of Italy
Drawing of a dorsal view of a living animal of Calliostoma bairdii dredged in the Atlantic Ocean at a depth of from 100 m to 1170 m.
Rare purple beaded specimen of Calliostoma supragranosum found subtidally in Southern California.
A detached bell tower (campanile) at the University of Kansas
The Santo Tomás parish church in Haro, La Rioja has an exconjuratory in its bell tower
Cancellaria (Euclia) balboae
Skulls of dire wolf (C. dirus), gray wolf (C. lupus), eastern wolf (C. lycaon), red wolf (C. rufus), coyote (C. latrans), African golden wolf (C. anthus), golden jackal (C. aureus) and black-backed jackal (C. mesomelas)
Diagram of a wolf skull with key features labelled
Dentition of a wolf showing functions of the teeth.
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Dogs, jackals, wolves, and foxes (Plate I).jpg
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Dogs, jackals, wolves, and foxes (Plate XI).jpg
Dogs, jackals, wolves, and foxes (Plate X).jpg
Dogs, jackals, wolves, and foxes (Plate VI).jpg
Dogs, jackals, wolves, and foxes (Plate XLI).jpg
Dogs, jackals, wolves, and foxes (Plate XLIV).jpg
Dogs, jackals, wolves, and foxes (Plate XIII).jpg
Dogs, jackals, wolves, and foxes (Plate XII).jpg
Comparative image of the red wolf (C. rufus) & the coyote (C. latrans). A 2016 genetic study of canid scats found that despite high coyote density inside the Red Wolf Experimental Population Area (RWEPA), hybridization occurs rarely (4% are hybrids).[2]
Skulls of North American Canis, with red wolf in the center
Red wolf in forest
Red wolf
Historical range of the red wolf (Canus rufus)
Audubon's depiction of the species (1851)
Melanistic individual at the Audubon Park, New Orleans (1931)
USFWS worker with red wolf pups, August 2002
Capulus danieli
Blacknose shark geographic range
Blacknose shark (Carcharhinus acronotus)
Silvertip shark geographic range
Silvertip shark (Carcharhinus albimarginatus)
Bignose shark geographic range
Bignose shark (Carcharhinus altimus)
Graceful shark geographic range
Graceful shark (Carcharhinus amblyrhynchoides)
Grey reef shark geographic range
Grey reef shark (Carcharhinus amblyrhynchos)
Pigeye shark geographic range
Pigeye shark (Carcharhinus amboinensis)
Borneo shark geographic range
Copper shark geographic range
Copper shark (Carcharhinus brachyurus)
Spinner shark geographic range
Spinner shark (Carcharhinus brevipinna)
Nervous shark geographic range
Nervous shark (Carcharhinus cautus)
Pacific smalltail shark geographic range
Pacific smalltail shark (Carcharhinus cerdale)
Whitecheek shark geographic range
Whitecheek shark (Carcharhinus dussumieri)
Silky shark geographic range
Silky shark (Carcharhinus falciformis)
Creek whaler geographic range
Creek whaler (Carcharhinus fitzroyensis)
Galapagos shark geographic range
Galapagos shark (Carcharhinus galapagensis)
Pondicherry shark geographic range
Pondicherry shark (Carcharhinus hemiodon)
Finetooth shark geographic range
Finetooth shark (Carcharhinus isodon)
Smoothtooth blacktip shark geographic range
Smoothtooth blacktip shark (Carcharhinus leiodon)
Bull shark geographic range
Bull shark (Carcharhinus leucas)
Blacktip shark geographic range
Blacktip shark (Carcharhinus limbatus)
Oceanic whitetip shark geographic range
Oceanic whitetip shark (Carcharhinus longimanus)
Hardnose shark geographic range
Hardnose shark (Carcharhinus macloti)
Blacktip reef shark geographic range
Blacktip reef shark (Carcharhinus melanopterus)
Dusky shark geographic range
Dusky shark (Carcharhinus obscurus)
Caribbean reef shark geographic range
Caribbean reef shark (Carcharhinus perezi)
Sandbar shark geographic range
Sandbar shark (Carcharhinus plumbeus)
Smalltail shark geographic range
Smalltail shark (Carcharhinus porosus)
Blackspot shark geographic range
Blackspot shark (Carcharhinus sealei)
Night shark geographic range
Night shark (Carcharhinus signatus)
Spot-tail shark geographic range
Spot-tail shark (Carcharhinus sorrah)
Australian blacktip shark geographic range
Australian blacktip shark (Carcharhinus tilstoni)
Fossil teeth of Carcharias holmdelensis from Israel, Upper Cretaceous
Fossil teeth of Carcharias samhammeri from Israel, Upper Cretaceous
Fossil teeth of Carcharias tingitana from Morocco, Paleogene
A cast of C. ohioensis assembled from various specimens
Skeleton in Minnesota Science Museum
Mounted skeleton
Fossil shells of Cerithium crenatum from Pliocene of Italy
50 second video of snails (most likely Natica chemnitzi and Cerithium muscarum) feeding on the sea floor in the Gulf of California, Puerto Peñasco, Mexico
50 second video of snails (most likely Natica chemnitzi and Cerithium stercusmuscaram) feeding on the sea floor in the Gulf of California, Puerto Peñasco, Mexico
Skeleton of Cervus elaphus found at Għar Dalam
Stag and hinds
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Caspian Red Deer (Maral) in Arasbaran forest.jpg
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El Pardo ciervo.jpg
Bukhara Deer stag at Speyside Wildlife Park - - 1002574.jpg
Cervus elaphus barbarus, Tierpark Berlin, 523-629.jpg
A group of hinds with calves
Two males roaring
Red deer mating
The Monarch of the Glen, 1851, by Sir Edwin Landseer, an iconic image of the 19th century
Rustic deer antler candle holder
X-ray image of the shell of Charonia lampas
The struggle between a starfish and an Atlantic triton can last up to an hour before the seastar is subdued by the snail's paralyzing saliva.
Fossil shell of Charonia appenninica from Pliocene of Italy
Two individuals of Acanthopleura granulata on a rock at high tide level in Guadeloupe
Loose valves or plates of Chiton tuberculatus from the beachdrift on Nevis, West Indies, head plates at the top, tail plates at the bottom
Prepared chiton shell with structure of plates clearly visible.
The underside of the gumboot chiton, Cryptochiton stelleri, showing the foot in the center, surrounded by the gills and mantle: The mouth is visible to the left in this image.
Cryptoconchus porosus, a butterfly chiton, which has its valves completely covered by the girdle
Larvae of chitons: First image is the trochophore, second is in metamorphosis, third is an immature adult.
Separate plates from Matthevia, a Late Cambrian polyplacophoran from the Hellnmaria Member of the Notch Peak Limestone, Steamboat Pass, southern House Range, Utah are shown with a US one-cent coin (19 mm in diameter).
Hermes wearing a chlamys
King David in the Paris Psalter, 10th century AD
A painted turtle is swimming, apparently in an aquarium, and we see it front on at large scale, with its left webbed foot raised.
The painted turtle's yellow face-stripes, philtrum (nasal groove), and foot webbing
A full overhead shot of an eastern painted turtle
A midland painted turtle sitting on rocky ground facing left with his head slightly retracted into his shell
A southern painted turtle facing left, top-side view, stripe prominent, on pebbles
A western painted turtle standing in grass, with neck extended
A handled turtle, exposing the orange-yellow undershell(plastron).
An overturned turtle on rocks: the under shell is faint tan with faint black shaded patterns on it.

An overturned southern painted turtle facing right. Shell is yellow-tan without spots. Legs are splayed. On a white plastic background. An overturned turtle on grass: coloring is bright red with black and white Rorshach-like patterns.

Eastern Painted Turtle (Chrysemys picta picta).jpg
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Dragonfly larva on lake bottom in Algonquin Provincial Park cropped and reversed.JPG
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Curve of duckweed covered water edged with several bald cypress trees.JPG
Adult fox.JPG
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Common Snapping Turtle (Chelydra serpentina).jpg
Water Scorpion - Nepa cinerea - Queens Wood - Hunsdon - UK - Flickr - Bennyboymothman.jpg
Raccoon, female after washing up mirror image.jpg
Male southern painted turtle shows his long front claws
Female painted turtle
A female digging a nest with her hind legs.
A female digging a nest
Several baby painted turtles on moss on a light table.
Hatchling painted turtles
A painted turtle standing on a floating log
Basking for warmth
Painted turtle with green slime on its shell, on pebbles, with a couple of leaves on its back. Sun shining.
Moving on land
Map of North America showing the subspecies' specific ranges in different colors
An eastern painted turtle held
Eastern painted turtle in Massachusetts
Western painted turtle (watercolor by G. Aeschimann)
turtle on log looking up, we see it from the rear
Western painted turtle in Oregon
An open pond
Painted turtle habitat in New Hampshire
two diagrams showing numbes on the outer segments of turtle shells. There are some notches and then corresponding numbered code.
Shell marking code
a line drawing of Schneider's portrait at a 3/4 angle. he looks resolute and has long hair.
German naturalist Johann Gottlob Schneider first categorized the painted turtle.
fossils in a tray, paper labels nearby
Top and bottom shell fossils, about 5 million years old, from a Tennessee sinkhole[3]
An orange, diamond-shaped sign on the right side of a winding road way that says "Slow: crossing season" with a picture of a turtle.
British Columbia road sign (for painted turtle protection)
Oregon conservation video: If video play problematic, try external links within citations.[4][5] Note list of factors at 0:30–0:60 and hoop trap at 1:50–2:00.
A square turtle trap is floating near some reeds. There is a plank across the middle, but open access to a space in the middle otherwise, that three turtles are basking on, one crawling on the other. The outer sides of the trap slope and one turtle is starting to climb out of the water, up onto the trap. It is sunny.
Basking trap in Minnesota
A large turtle statue standing on two legs and holding a Canadian flag in one hand an American flag in the other.
Tommy the Turtle
Cidaris cidaris
Plate 76 of Birds of America by John James Audubon depicting Virginian Partridge.
Closeup of the head of Coluber constrictor mormon
Northern Black Racer, C. c. constrictor
Example of varietal wine produced from Corvina
Hooded crow (Corvus cornix) in flight
Jungle crow (Corvus macrorhynchos) scavenging on a dead shark at a beach in Kumamoto, Japan
Crow on a branch
Close-up of the upper body of a jackdaw (Corvus monedula)
House crow (Corvus splendens), Bangalore
Indian crow in Tamil Nadu
Corvus splendens or house crow resting in shadows on a rooftop with slaughterhouse refuse to eat
Nestlings, almost ready to fledge
A crow's nest is made of materials like twigs, electrical wires, metal strips, plastic pieces, and other small items.
The Hawaiian crow or ʻalala (Corvus hawaiiensis) is nearly extinct; only a few dozen birds survive in captivity. It is listed as "extinct in the wild" by the United States Fish and Wildlife Service.
Crow on a Branch - Kawanabe Kyosai (1831–1889)
Crow on a branch, Maruyama Ōkyo (1733–1795)
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In sunlight, the plumage can display a blue or purple sheen which is a result of iridescence.
Two juveniles in Iceland
Group of ravens gathered around dead member
Young on a nest – Hvítserkur, Iceland
Eggs of Corvus corax
Flock feeding at a garbage dump
Dilapidated NIKE Missile radar dome in Alaska with an evening roost
Bill Reid's sculpture The Raven and The First Men, showing part of a Haida creation myth. Museum of Anthropology, University of British Columbia.
Valkyrie speaks with a raven in a 19th-century illustration of the Old Norse poem Hrafnsmál ("raven song") by Frederick Sandys
C. oweni skull
Skull of C. elephantopus
Individual walking towards a swamp, Robert Bruce Horsfall
Restoration by Charles R. Knight
Crassostrea gigantissima (Finch, 1824) right valve interior (Eocene of Texas).
Adult Crotalus horridus, Florida
Juvenile Crotalus horridus, Florida
Skeleton and model
The small eyes and loose skin are characteristic of hellbenders
Hellbender on display at the Smithsonian National Zoological Park, Washington, DC
Merlin chasing a blue jay
Blue jay in flight
Whole peanuts and other shelled food items are carried off in the beak to be dealt with at leisure.
Blue jay cracking nuts
Nest in the top of a little pine
Eggs, Collection Museum Wiesbaden
Fledgling in mid-June
Fledgling head
Cypraea albuginosa, museum specimens. Naturalis.
Southern ringneck snake, Diadophis p. punctatus
The defensive display of a San Bernardino ring-necked snake
Southern ring-necked snake, D. p. punctatus
Ring-necked snake from Mount Diablo, California
Recently hatched ring-necked snake, Missouri Ozarks.
D. p. pulchellus, coralbelly ring-necked snake
Fossil dental plate of Diodon. Miocene of United States
Diodora elizabethae
Diodora saturnalis
Diodora patagonica
Diodora lineata
Dosinia coerulea
Dosinia exasperata
Dosinia lupinus lincta, the smooth artemis
Adult voicing cat-like sounds at Wildwood Preserve Metropark, Ohio, USA
Nest and egg in a cedar shrub four feet above the ground
Time-lapse video of a blooming echinopsis
Echinopsis chamaecereus at the Talcott Greenhouse.
Earliest published illustration of the species (a male), Mark Catesby, 1731
Band-tailed pigeon, a species in the related genus Patagioenas
The physically similar mourning dove is not closely related.
Turnaround video of an adult male specimen at Naturalis Biodiversity Center
Turnaround video of an adult female specimen at Naturalis
Turnaround video of a juvenile female specimen at Naturalis
Skeleton of a male bird, 1914
Musical notes documenting male vocalizations, compiled by Wallace Craig, 1911
Live male in Whitman's aviary, 1896/98
Illustration of migrating flocks, Frank Bond, 1920
Juvenile (left), male (center), female (right), Louis Agassiz Fuertes, 1910
Alert parent bird posing defiantly towards the camera
Acorns in South Carolina, among the diet of this bird
Internal organs of Martha, the last individual: cr. denotes the crop, gz. the gizzard, 1915
Nesting captive bird, wary of the photographer
Nest and egg in Whitman's aviary
Preserved egg, Muséum de Toulouse
Live nestling or squab
Immature bird; the young were vulnerable to predators after leaving the nest
Billing pair by John James Audubon, from The Birds of America, 1827–1838. This image has been criticized for its scientific accuracy.
Painting of a male, K. Hayashi, c. 1900
Depiction of a shooting in northern Louisiana, Smith Bennett, 1875
1881 spread showing methods of trapping pigeons for shooting contests
Pigeon net in Canada, by James Pattison Cockburn, 1829
Trapper Albert Cooper with blind decoy pigeons for luring wild birds, c. 1870
Male and female by Louis Agassiz Fuertes, frontispiece of William Butts Mershon's 1907 The Passenger Pigeon
Life drawing by Charles R. Knight, 1903
"Buttons", the second last confirmed wild passenger pigeon, Cincinnati Zoo
Whitman's aviary with passenger pigeons and other species, 1896/98
Martha, the last passenger pigeon, alive in 1912
Martha at the Smithsonian Museum, 2015
Pigeons being shot to save crops in Iowa, 1867
Taxidermied male and female, Laval University Library
Closeup of head.
A close up portrait
Gravid female
Young corn snake
Baby corn snakes hatching from their eggs
Captive corn snake eating young mouse
A docile young corn snake (an introduced species) captured from the wild on the island of Nevis, West Indies, in 2009.
An anerythristic corn snake
Amelanistic Stripe corn snake
"Opal" phase corn snake
Epitonium hexagonum
Epitonium irregulare
Vocalizations of the Big brown bat vary with behavioral context
Big brown bats roost in a Minnesota barn
Fossil shell of Euspira catena from Pliocene of Italy
Fossil Euthria from the Pliocene of Cyprus.
Exogyra costata, Prairie Bluff Chalk Formation (Maastrichtian); Starkville, Mississippi
Adult female in Winnipeg, Manitoba, Canada
Kestrel relaxing in an apple tree.
Female about to pounce
A young bird
Male with handler, San Diego Zoo
Fissurella crassa
Fissurella latimarginata
Fissurella radiosa tixierae, apical view
Fissurella rubropicta
Fissurella virescens
Ancient Egyptian flabella (top center) and lotus motifs. 1868, NYPL picture collection
A 19th-century painting by Horace Vernet of Pope Pius VIII being carried on the sedia gestatoria and flanked by flabella.
Eastern Christian ripidion, 19th century (Pskov museum).
Armenian silver ripidion, with six-winged seraphim.
Fossil of Galeodea tauroglobosa
Cazón en adobo
In flight
Juvenile swimming in the ocean off Mcgee Island, Maine
On a nest by water in Maine, U.S.
Adult with chicks
Cassell's book of birds, ca 1875
The underside of a human tongue, showing its rich blood supply.
Foramen cecum and terminal sulcus labelled above
Features of the tongue surface
Lateral view of the tongue, with extrinsic muscles highlighted
Coronal section of tongue, showing intrinsic muscles
Blood supply of the tongue
Section through the human tongue; stained H&E
Giraffe's tongue
Extended proboscis of a long tongued Macroglossum moth
A variety of Goniopora sp.
A Mississippi map turtle swimming in a tank at a pet store.
Five sunning with a midland painted turtle, Ottawa, Ontario
Adult plastron
Basking on a sunny day
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African fish eagle, Haliaeetus vocifer, at Chobe National Park, Botswana (33516612831).jpg
Madagascan Fish Eagle - Ankarafantsika - Madagascar (15111026410) (2).jpg
Pallas's Fish-eagle Haliaeetus leucoryphus by Dr. Raju Kasambe IMG 0582 (10).CR2.JPG
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Grey-headed Fish-Eagle (Icthyophaga ichthyaetus) adult - Flickr - Lip Kee (3).jpg
Adult and chick
Bald eagle anatomy
This eagle has a sizeable wingspan
Bald eagle in flight at Yellowstone National Park, Wyoming
With freshly caught fish in Kodiak
Head details
Feeding on catfish and other various fishes. Painted by John James Audubon
A bald eagle on a whale carcass.
At the Hawk Conservancy Trust in Andover
Egg, Collection at Museum Wiesbaden in Germany.
Newly fledged juvenile
Lady Baltimore, a bald eagle in Alaska who survived a poaching attempt, in her Juneau Raptor Center mew, on August 15, 2015
In Skagit Valley, Washington, United States
Staff at the National Eagle Repository processing a bald eagle
Human left hand with hamulus of hamate bone shown in red
Numerous shells of a Turritella species washed up on the beach at Playa Grande, Costa Rica
Fossil specimens of Turritella incrassata
North Carolina specimen
Florida specimen
Cape Cod, Massachusetts specimen.
Western hog-nosed snake, H. nasicus
Bullhead shark egg case
Barking tree frog, Hyla gratiosa
Metamorphs are often similar in appearance. H. gratiosa (left), H. cinerea (center), H. chrysoscelis (right)
Hyla gratiosa males calling
Mole kingsnake (Lampropeltis calligaster rhombomaculata)
California kingsnake (Lampropeltis getula californiae)
Speckled king snake (Lampropeltis getula holbrooki)
Beta Negative Decay.svg
A muon transmutes into a muon neutrino by emitting a
. The
boson subsequently decays into an electron and an electron antineutrino.
Left-handed and right-handed helicities
Lepton–photon interaction

Lepton-interaction-vertex-evW.svg Lepton-interaction-vertex-pvW.svg Lepton-interaction-vertex-eeZ.svg

Each generation forms a weak isospin doublet.
L. g. getula can be quite docile even when caught wild.
Young milk snake found in central Tennessee that had just eaten a lizard
Mexican milk snake, L. t. annulata
L. g. getula can be quite docile even when caught wild.
Young milk snake found in central Tennessee that had just eaten a lizard
Mexican milk snake, L. t. annulata
Eastern kingsnake (Lampropeltis getula getula)
Florida kingsnake in Dixie County, Florida.
Eurasian lynx
Iberian lynx
A lynx stalking prey
Comparative illustration of bobcat (top) and Canada lynx (bottom) heads (1906)
A bobcat finds water
Bobcat in the front yard of a residence
Bobcats often prey on rabbits, hares, and rodents.
Bobcat kittens in June, about 2–4 months old
Bobcat tracks in mud showing the hind-paw print (top) partially covering the fore-paw print (center)
Skull of a bobcat
Bobcat confronting a pair of coyotes.
Bobcat in urban surroundings: The species' range does not seem to be limited by human populations, as long as it can still find a suitable habitat.
The bobcat population has seen decline in the American Midwest, but is generally stable and healthy.
A Shiva Lingam near the Radhe Krishna Temple in Rajbira
A 10th-century four-headed stone lingam (Mukhalinga) from Nepal
Lingodbhava Shiva: God Shiva appears as in an infinite Linga fire-pillar, as Vishnu as Varaha tries to find the bottom of the Linga while Brahma tries to find its top. This infinite pillar conveys the infinite nature of Shiva.[6]
Mural painting depicting Shiva with the Lingam in the Palace of Mehrangarh Fort, Jodhpur.
A lingam with a swastika at the Katas Raj Temples in northern Pakistan.
A birds eye view of a Shiva Lingam
Ancient Shiv Ling at Rajbari.jpg
Lingam in the cave at Amarnath
Lunularia can also reproduce sexually, as illustrated by Haeckel in this drawing of an archegonial head with (diploid) sporophyte plantlets. The main plant body (thallus) is haploid
L. orbiculatum on a rock fragment; rock length ~3 cm.
Lithophyllum sp.
Macoma secta, the white-sand macoma
Exhuming the First American Mastodon, 1806 painting by Charles Willson Peale
Comparison of woolly mammoth (L) and American mastodon (R)
Comparison of a woolly mammoth (left) and an American mastodon (right).
Excavation of a specimen in a golf course in Heath, Ohio, 1989
American mastodon molars at the State Museum of Pennsylvania
Female and calf American mastodon at the George Page Museum
Restoration of an American mastodon herd by Charles R. Knight
Tooth of M. africanavus, one of the earliest known species of mammoth, from North Africa.
Paleolithic painting of mammoth from the Rouffignac Cave
Restoration of a steppe mammoth
Colored silhouette of a mammoth, relative in size to a human and past and present elephants
Size (blue) compared to a human and other mammoths
Mammuthus primigenius "Hebior Mammoth specimen" bearing tool/butcher marks
Model depicting the calf "Dima", Stuttgart
Large mammoth tooth
1863 lithograph of the partial holotype molar (specimen BMNH 40769)
Skeleton of a mammoth with long, curved tusks
One of the largest mounted mammoth skeletons in the world, nicknamed "Archie", at Nebraska State Museum of Natural History. It is the type specimen of the synonym Archidiskodon imperator maibeni
Four archeologists excavating a mammoth skeleton
Excavation of a pygmy mammoth, which evolved from Columbian mammoths on the Channel Islands of California
Museum skeleton, with curved tusks crossing at the tips
Specimen formerly assigned to the synonym M. jeffersonii (also suggested to be a hybrid between Columbian and woolly mammoths) at the American Museum of Natural History
Mammoth skull on a dolly
Underside of the skull of a male La Brea specimen nicknamed "Zed", showing upper molars
Large rocks rising from coastal sand
Outcrops on Goat Rock Beach, possibly used as rubbing rocks by Columbian mammoths
Drawing of a pair of mammoths; one has short tusks, and the other's are long and curved.
Restoration of a pair by a lake, Robert Bruce Horsfall, 1912
Remains of a mammoth buried 53,000 years ago
Female "mammoth W" specimen at the Waco Mammoth National Monument
Partially-excavated mammoth skeleton, 26,000 years old
Male "Murray" specimen at the Hot Springs Mammoth Site
Predators fighting over a Columbian mammoth carcass in the La Brea Tar Pits, Robert Bruce Horsfall, 1911
S. fatalis fighting dire wolves over a Columbian mammoth carcass in the La Brea Tar Pits, Robert Bruce Horsfall, 1913
Mammoth jaw with other bones on the ground
Mandible showing lower molars, in a lahar deposit at the Paleontological Museum in Tocuila, Mexico
Mammoth skeleton with long, curved tusks, in front of a painted prehistoric backdrop
Cast of the old male "Huntington mammoth" (which had preserved stomach contents) at the Natural History Museum of Utah
Young mammoth skeleton, with a large skull relative to its body
Skeleton of a juvenile at the Natural History Museum of Utah
Painting of sloth in tar pit menaced by saber-toothed cat, with condors waiting in a tree
Environment around the La Brea Tar Pits, with Columbian mammoth herd in the background, Charles R. Knight, 1921
S. fatalis pair approaching a group of ground sloths (Paramylodon), one mired, at the La Brea Tar Pits, Charles R. Knight, 1921
Drawing of humans hunting an elephant-like mammoth, who is lifting a human with its trunk
Fanciful restoration of a Columbian mammoth hunt, John Steeple Davis, 1885
Side-by-side rock carvings
Tracings of petroglyphs from Utah, depicting two Columbian mammoths; a bison carving is superimposed on one of the mammoth carvings
Seven Clovis points
13,000 year old Clovis points
A margin snail with its mantle partly covering the shell
"Flagellata" from Ernst Haeckel's Artforms of Nature, 1904
Parasitic excavate (Giardia lamblia)
"Flagellata" from Encyclopædia Britannica
Megalonyx jeffersonii skeleton cast produced and distributed by Triebold Paleontology Incorporated
Megalonyx jeffersonii skeleton
Melanella martinii, abapertural view
Adult female – showing reddish belly.
Peeking out of its nest
A female red-bellied woodpecker feeding her chick
Red-bellied woodpecker feeding on the ground, Central Park, New York, USA.
Red-bellied woodpecker foraging behavior
Plate 1 of The Birds of America by John James Audubon, depicting a wild turkey
Male ocellated turkey, Meleagris ocellata
A roast turkey surrounded by Christmas log cake, gravy, sparkling juice, and vegetables
Closeup of wild turkey hen
Eastern subspecies
Wild turkey in flight
Hen with poults
Nest with 10 eggs
Hen with juveniles
Eastern wild turkey
Rio Grande wild turkey has relatively long legs
Gould's wild turkey
Female wild turkey with young, from Birds of America by John James Audubon
Eastern wild turkey (M. g. silvestris) hens
Defensive Position
Nahal Ayyun Bridge
Park near Nahal Ayyun
Safari Disaster Memorial site
Ice skating in the Canada Centre
Microtus skulls (Bailey, 1900)
Microtus skull bases (Bailey, 1900)
Side view
Juvenile in the open
On the ground amid strands of grass in Virginia, US
Murex altispira
Fossil shell of Murex spinicosta from Pliocene of Italy
Little brown bat with white-nose syndrome
Applying a wing band to help biologists and researchers identify individual bats from year to year.
Fossil tooth or plate of Myliobatis dixoni from Khouribga (Morocco), 55-45 mya
Archaeological museum Narona
Fossil Naticarius millepunctatus, Nicosia Formation, Pliocene, Cyprus.
Mare and foal at Ashfall Fossil Beds
A large pack rat midden (center) from the Pleistocene period
Active pack rat midden in northern Nevada
Bushy-tailed woodrat on midden
Nerodia rhombifer, diamondback water snake, giving birth
Nerodia erythrogaster transversa, blotched water snake
Fawn waving its white tail
Male whitetail in Kansas
O. v. truei, female, Costa Rica
Three O. v. borealis, New Hampshire
North America
Central and South America
White-tailed deer buck seen in Missoula, Montana.
Female with tail in alarm posture
Close up of female's head
Male white-tailed deer
White-tailed bucks with antlers still in velvet, August 2011
White-tailed deer during late winter
These bucks were pursuing a pair of does across the Loxahatchee River in Florida—the does lost them by entering a mangrove thicket too dense for the bucks' antlers.
Fawn lying on grass
Two white-tailed deer nuzzling in Cayuga Heights, New York
Rescued fawn being kept as a pet in a farm near Cumaral, Colombia
Three White-tailed deer spotted in Buena Vista, Virginia
Car that suffered major damage after striking a white-tailed deer in Wisconsin
Odocoileus virginianus skull, part of an exhibition on the cultural artifacts of the Cora people of Western Mexico.
The prominent cusps of one Odontaspis species (O. ferox).
Odostomia fusulus Monterosato, 1878
Buddhist monastery in Olivella
O. aestivus, rough green snake
O. aestivus climbing over vegetation
Illustration of the owl by Audubon
Screech owls can easily avoid detection during the day due to their effective camouflage among the bark of deciduous trees.
Juvenile eastern screech owl
Fuertes portrait of a red and gray morph screech owl
Fossil valves of Ostrea forskali from Pliocene of Italy
A lingual (tongue-side) view of a lateral O. obliquus.
Illustration of articulated vertebrae of P. toliapicus
Two cladograms proposed for Panthera. The upper one is based on phylogenetic studies by Johnson et al. (2006),[7] and by Werdelin et al. (2010).[8] The lower cladogram is based on a study by Davis et al. (2010)[9] and by Mazák et al. (2011).[10]
Felis macroscelis - 1700-1880 - Print - Iconographia Zoologica - Special Collections University of Amsterdam -(white background).jpg
Cambridge Natural History Mammalia Fig 195 (white background).jpg
Felis onca - 1818-1842 - Print - Iconographia Zoologica - Special Collections University of Amsterdam - (white background).jpg
Felis leo - 1818-1842 - Print - Iconographia Zoologica - Special Collections University of Amsterdam -(White Background).jpg
Lydekker - Leopard (white background).JPG
Lydekker - Leopard (white background).JPG
Felis tigris - 1818-1842 - Print - Iconographia Zoologica - Special Collections University of Amsterdam -(white background).jpg
A male jaguar photographed near Rio Negro, Brazil
Fossil skull of Pleistocene North American jaguar (Panthera onca augusta)
The head of the jaguar is robust and the jaw extremely powerful. The size of jaguars tends to increase the farther south they are located.
A melanistic jaguar is a color morph which occurs at about 6 percent frequency in populations.
The jaguar inhabits a variety of forested and open habitat, but is strongly associated with the presence of water.
Mother about to pick up a cub by the neck
4-months-old cub at the Salzburg Zoo
Jaguars at Cameron Park Zoo in Waco, Texas
The jaguar has an exceptionally powerful bite that allows it to pierce the shells of armored prey.
Illustration of a jaguar killing a tapir, the largest native land animal in its range
Jaguar killed by Theodore Roosevelt
A melanistic jaguar
Adult jaguar in Cameron Park Zoo, Waco, Texas
El Jefe
Moche jaguar figurine (300 AD), Larco Museum Lima, Peru
Jaguar warrior in the Aztec culture
Statuette Karajà
Copy of the Book of Chilam Balam of Ixil in the National Museum of Anthropology, Mexico
Skull diagram
Fisher in winter coat
A fisher in the woods near Ipswich, Massachusetts
A fisher climbing a tree at night
Fisher pelts sold: 1920–1984[11][12]
Fisher fur pelt (dyed)
Fisher raiding a farmer's duck coop
Male fisher killed by anticoagulant rodenticide on a marijuana grow site on US Forest Service Lands, southern Sierra Nevada mountains
An embedded fossil of Penion crawfordi from Cape Palliser, New Zealand.
Young bird
Eurasian magpie egg
Hopscotch game with the magpie rhyme
Maghreb magpie (P. p. mauritanica) showing the characteristic blue patch behind the eye
In flight
P. p. bactriana in Ladakh
Female of the Great Basin race, orius, which has less white on the wings than eastern races and has cream-colored underparts
Male moulting to his duller feathers during autumn
Scarlet tanagers eat ripe fruit when available, occasionally including ones, such as this orange half, that are set out by humans
Call of the Scarlet Tanager
Stuffed Scarlet tanager from 1860's, St. Barthélemy
Plethodon cylindraceusPCCA20060409-3176A.jpg
A northern slimy salamander in Great Smoky Mountains National Park, Tennessee
Young chick swimming on Lake Washington
P. podiceps eggs at Bogotá's Simón Bolívar Park
Adult with two juveniles feeding on a crawfish
Polinices galianor umbilicus; Pliocene of San Diego County, California.
Common grackle
Iridescent male common grackle
Common grackle (Quiscalus quiscula) in Central Park, New York, USA.
Jai Singh I of Amber receiving Shivaji a day before concluding the Treaty of Purandar (12 June 1665)
The Maharaja of Benares and his suite, 1870s
A Chinese depiction of a Raha (the Spanish pronunciation of Rajah) or Hari in Boxer Codex (c. 1595). Raja was a title used by the Royalties in the Classical Period of pre-colonial Philippines.
Raja Dhrub Dev assesses a horse, by Nainsukh, c. 1740s; it was usual for horses to be shown off in front of a white sheet, to better appreciate their form
American bullfrog
In typical aquatic habitat
A young male displaying yellow throat and large tympani
Bullfrog larva and mouthparts
Juvenile with a small, grey, oval-shaped area on top of the head, the parietal eye
Alligator feeding on a bullfrog
Bullfrogs in a Chinese supermarket
American bullfrog caught at night by a pond in the Southern United States on a homemade frog gig
Young northern leopard frog
Two burnsi morphs, a green morph, and a brown morph of the northern leopard frog
Reindeer losing the velvet layer under which a new antler is growing, an annual process
Caribou licking salt from roadway in British Columbia
Swedish reindeer
The size of the antlers plays a significant role in establishing the hierarchy in the group.[13]
Swedish reindeer walking
Reindeer standing on snow to avoid blood-sucking insects.
Approximate range of caribou subspecies in North America. Overlap is possible for contiguous range. 1.R. t. caribou subdivided into ecotypes: woodland (boreal), woodland (migratory), woodland (montane), 2.R. t. dawsoni extinct 1907, 3. R. t. granti, 4.R. t. groenlandicus, 5. R. t. groenlandicus/pearyi 6. R. t. pearyi
Male Porcupine caribou R. t. granti in Alaska
The Beverly herd of barren-ground caribou, Thelon River, Nunavut.[14]
The Peary caribou is a relatively small and pale subspecies found in the tundra of far northern North America. Unsurprisingly, it is part of the group known as tundra reindeer.
Characteristically small and relatively short-legged reindeer from Svalbard
Svalbard reindeer (R. t. platyrhynchus)
Southernmost reindeer: South Georgian reindeer with velvet-covered antlers
Reindeer pulling a sled in Russia
Early 20th Century Inuit parka from caribou skin
A reindeer sled, Arkhangelsk, Russia. Late nineteenth-century photochrom
Milking reindeer in the 19th century
Tragelaphus or deer-goat
Two Scottish reindeer relax after pulling Santa's sleigh at the switching on of Christmas lights
Rhinobatos hakelensis fossil
Fossil of Rhinobatos whitfieldi
Fossil of Rhinobatos hakelensis
The town
Fossil of Scyliorhinus elongatus from Cretaceous of Lebanon
A shell of Seila marmorata
Illustration of American woodcock head and wing feathers
"Woodcock, with attenuate primaries, nat. size." 1891.
Woodcock chick in nest
Downy young are already well-camouflaged
Drawing from an Etruscan mirror: Semele embracing her son Dionysus, with Apollo looking on and a satyr playing an aulos
Roman sarcophagus (ca. 190 CE) depicting the triumphal procession of Bacchus as he returns from India, with scenes of his birth in the smaller top panels (Walters Art Museum, Baltimore, Maryland)
Jove and Semele (1695) by Sebastiano Ricci
Shells of Sinum grayi
A shell of Sinum haliotoideum
S. populator skull and syntype canine from Lund's collection, Zoological Museum, Copenhagen
1869 lithograph of the holotype molar and maxilla fragment of S. fatalis
Isolated S. populator canine tooth; the tip points to the right
Felis caracal - 1818-1842 - Print - Iconographia Zoologica - Special Collections University of Amsterdam -(White Background).jpg
Felis pardalis - 1834 - Print - Iconographia Zoologica - Special Collections University of Amsterdam -(White Background).jpg
Felis chaus - 1700-1880 - Print - Iconographia Zoologica - Special Collections University of Amsterdam -(White Background).jpg
Felis concolor - 1818-1842 - Print - Iconographia Zoologica - Special Collections University of Amsterdam -(white background).jpg
Smilodon Knight (white background).jpg
Smilodon fatalis Knight (white background).jpg
La Brea S. fatalis skull cast with jaws at maximum gape
Lion pride attacking an African buffalo in Tanzania; Smilodon may also have hunted in groups
Undersides of S. fatalis skulls, showing canine replacement, George C. Page Museum
Maximum gape (A) and reconstructions of neck bite in prey of different sizes (B, C)
1880 skeletal diagram of S. populator
Woman carrying a barracuda in Madagascar
Photo of diver swimming among barracuda
Scuba diver swimming inside a group of Sphyraena putnamae off Ko Tao, Thailand.
Photo of barracuda head in profile with jaw extended
Close-up of Sphyraena barracuda
Sphyraena barracuda, with prey
School of Sphyraena qenie, at Elphinstone Reef in the Red Sea
A battery of Sphyraena putnamae, in Bora Bora
A battery of Sphyraena flavicauda off Dayang, Malaysia
Sphyraena borealis
Fur skin of Spilogale putorius
Fossil valve of Spondylus crassicosta from the Pliocene of Italy
Pacific thorny oyster, S. crassisquama Lamark, 1819, from the Gulf of California, Mexico
The interior of two fossil valves of Spondylus from the Pliocene of Cyprus
Cat's tongue oyster, Spondylus linguaefelis Sowerby, 1847, from Hawaii
A view of the colorful mantle edges of a live thorny oyster from East Timor: The eyes can be seen on the fringe between the mantle and the shell.
A fossil Spondylus gaederopus from the Pliocene of Cyprus
North American brown snake
A brown snake in Clarksville, Tennessee
Close-up, Ontario, Canada
Barred pattern, Ontario, Canada
Barred Owl song, recorded in Florida, USA
Live animal of the Florida fighting conch Strombus alatus. Note the extensible snout in the foreground, and the two stalked eyes behind it
Fossil shell of Strombus radix
Fossil shell of Strombus coronatus from Pliocene of Italy
(video) A tapir at Ueno Zoo.
Tapir showing the flehmen response
A mountain tapir, the wooliest and most threatened species of tapir
Lowland tapir earthenware from Suriname, made before 1914
T. proterum and Barbourofelis loveorum
Terebra inversa, a fossil gastropod from Pliocene deposits near Antwerp.
Posterior tooth of a garter snake
Close up of the scales on the back of the common garter snake.
Eating a frog
Mating ball
Young garter snake
Common garter snake (Thamnophis sirtalis sirtalis)
Eastern blackneck garter (Thamnophis cyrtopsis ocellatus)
Checkered garter snake (Thamnophis marcianus)
Eastern Plains garter snake (T. radix radix), a disputed subspecies of Thamnophis radix
Redstripe ribbon snake (T. proximus rubrilineatus)
Texas garter snake (Thamnophis sirtalis annectens)
Tetrodotoxin effects in garter snakes
Effects of temperature in the common garter snake
Thiara winteri, abapertural view
A red variety of Trachyphyllia in a reef aquarium
Comparisons of "trapezium" in both British and American English.
Fossil teeth of T. oshoshunensis from Khouribga (Morocco.)
Trinacria as depicted on flag of Sicily
Hindu priest blowing a trumpet made out of a large shell of Turbinella pyrum, in Tirupati, India
Cut-away view of an air foil bearing-supported turbocharger
Variable geometry turbocharger diagram.gif
On the left, the brass oil drain connection. On the right are the braided oil supply line and water coolant line connections.
Compressor impeller side with the cover removed.
Turbine side housing removed.
Garrett variable-geometry turbocharger on DV6TED4 engine
Illustration of typical component layout in a production turbocharged gasoline engine.
Illustration of inter-cooler location.
A recirculating type anti-surge valve
A free floating turbocharger is used in the 100 litre engine of this Caterpillar mining vehicle.
A medium-sized six-cylinder marine diesel-engine, with turbocharger and exhaust in the foreground
Redwing (Turdus iliacus) in Iceland
Male sings
Male with a worm
Perching on tree
Robin with nest-making materials
Tetrao cupido drawn by T. W. Wood for second edition of Darwin's The Descent of Man, 1874
Coat of arms during the sede vacante – featuring an umbraculum
Umbraculum in the Basilica of Saint Stanislaus Kostka in Winona, Minnesota
Detail of head – taken at the Cincinnati Zoo and Botanical Garden.
Cinnamon-colored black bear eating dandelions in Waterton Lakes National Park
American black bears can be distinguished from brown bears by their smaller size, their less concave skull profiles, their shorter claws and the lack of a shoulder hump.
Some specimens may develop a white "crescent moon" mark on the chest. This white mark, which is constant in Asian black bears, occurs in only 25% of American black bears.[15]
Cinnamon-colored black bear in Yellowstone National Park
White-furred Kermode black bear
Black bear swimming
Newborn black bear cubs
Female with cubs in Parc Omega, Quebec
Mother black bear and cubs, hibernating
Black bear feeding on a bush
Black bear taking a dead chum salmon near Hyder, Alaska
Black bear with pink salmon
Harry Colebourn and Winnie, the bear from which Winnie the Pooh derives his name
The incidence of bear attacks in parks and campgrounds declined after the introduction of bear-resistant garbage cans and other reforms.
V. chrysantha in Kalbarri National Park
A view of the fossil shell of Xenophora infundibulum
The location of the state of Alabama
Zygorhiza kochii skull at the North Carolina Museum of Natural Sciences
Fossil in Teylers Museum, Haarlem
Agonum species (and Anchomenus dorsalis in lower right corner) from Edmund Reitter's Fauna Germanica (1908)
A group of Ainu people, c. 1870
Ainu bear sacrifice. Japanese scroll painting, c. 1870
The Oki Dub Ainu Band, led by the Ainu Japanese musician Oki, in Germany in 2007
Map of Ainu in Hokkaido
Ainu hunters, 19th century
Ainu man, circa 1880
John Batchelor took a picture of this Ainu man, who Batchelor said had hair completely covering his body.
Ainu men often have heavy beards.
Ainu woman with mouth tattoos and live bear
1843 illustration of Ainu
1862 illustration of an Ainu man (left) and a Nivkh couple (right)
Woman playing a tonkori
Ainu ceremonial dress, British Museum
Bear hunting, 19th century
Ainu traditional ceremony, c. 1930
Ainu cultural promotion centre and museum, in Sapporo (Sapporo Pirka Kotan)
People wearing traditional Ainu clothes in Hokkaido
Sakhalin Ainu men, photographed by Bronisław Piłsudski
Kuril Ainu people in front of the traditional dwelling
Bull and cow moose
Cow moose
Moose calf
Staged picture of a moose hunt in Norway, date unknown
Wading moose.jpg
Male Moose.jpg
Alces alces Cape Breton Highlands National Park.jpg
Shiras Bull at Cecret Lake a 07-25-12.JPG
Growing antlers are covered with a soft, furry covering called "velvet". Blood vessels in the velvet transport nutrients to support antler growth.
Young female (A. a. americana) in early June.
Crossing a river
Bark stripping
Bull moose eating a fireweed plant
Bull moose browses a beaver pond
A bull moose, disturbed by the photographer, lowers its head and raises its hackles.
Iron Age saddle from Siberia, depicting a moose being hunted by a Siberian tiger.
Moose attacked by wolves
Killing a moose in typical fashion: biting the hindquarters
Moose and reflection
Long legs allow moose to wade easily through deep water or snow.
Moose trophy head
Moose scat is commonly found on trails. Some souvenir shops sell bags of it, sealed with shellac and labeled with humorous names.
Norwegian road sign.
Warning sign in Alaska where trees and brush are trimmed along high moose crossing areas so that moose can be seen as they approach the road.
Moose (A. a. gigas) crossing a road in Alaska.
Moose kept as pack animals, Pechora-Ilych Nature Reserve, December 1952
An artist's rendition of Libralces gallicus
A Red Alder seed is a tiny samara like those of all alders
Alder coat of arms of Grossarl, Austria
Speckled alder (Alnus incana subsp. rugosa)—leaves
Leaves of the tag alder
Green Alder (Alnus viridis)
Pups of Arctic fox with summer morph
A Arctic fox (Summer morph) with fish
Arctic fox sleeping with its tail wrapped around itself
The Arctic fox's seasonal furs, summer (top), "blue" (middle), and winter (bottom)
Aphaenogaster dlusskyana worker in amber
A. lepida worker and male
The front and rear sides of a piece of birch bark
Birch leaves
Birch trees near stream in Hankasalmi, Finland
A stand of birch trees
Birch tree in autumn
Birch plywood
A birch bark inscription excavated from Novgorod, circa 1240–1260
Male and harem
Fur seal pups, including one rare albino
Overview of rookery
Northern fur seal pups
Men killing fur seals on Saint Paul Island, Alaska, 1890s
Carpenter ant cleaning antennae
Carpenter ants carrying a dead bee
A major worker of Camponotus sp.
Carpenter ant colony in an old fir stump
C. pennsylvanicus, winged male
C. crispulus queen
Wood damage by C. herculeanus
This structural board was destroyed by carpenter ants. They left the dense "late wood" of each growth ring intact, to use as galleries.
This structural board was destroyed by carpenter ants. They left the dense "late wood" of each growth ring intact, to use as galleries.
Honeypot ants in Northern Territory, Australia
Carabus macropus in a colour plate from Jacobson 1905-1915
C. rutilans
Skeleton of Cervus elaphus found at Għar Dalam
Stag and hinds
Cervus elaphus Luc Viatour 3.jpg
Red Deer Poing.JPG
Caspian Red Deer (Maral) in Arasbaran forest.jpg
Cervus elaphus LC0367.jpg
The Deer Park, Glengoulandie - - 136680.jpg
El Pardo ciervo.jpg
Bukhara Deer stag at Speyside Wildlife Park - - 1002574.jpg
Cervus elaphus barbarus, Tierpark Berlin, 523-629.jpg
A group of hinds with calves
Two males roaring
Red deer mating
The Monarch of the Glen, 1851, by Sir Edwin Landseer, an iconic image of the 19th century
Rustic deer antler candle holder
Chrysolina hyperici
Chrysolina quadrigemina
Young male catkins of Corylus avellana
A hazel coppice in winter at Bubbenhall in Warwickshire, England.
Skull of a cross between a narwhal and a beluga whale, at the Zoological Museum, Copenhagen
Skeleton of D. leucas
Front view of a Beluga whale in captivity
Head of a beluga showing its distinctive white colouring and the large frontal prominence that houses the melon
Spiracle in the back of a beluga's head
A beluga showing its tail fin in shallow water in Vancouver Aquarium, Canada
Emission and reception of sounds in a toothed whale
Aerial view of a pod of belugas swimming at the surface
Pacific salmon, the staple diet of belugas from Alaska
Underwater photo of calf swimming slightly below and behind its mother
Female and calf
Vocalizations of Delphinapterus leucas published by NOAA
Circumpolar distribution of beluga populations showing the main subpopulations
Young Beluga seen in Great South Bay, Long Island, March–July 1979.
Beluga in the mouth of the Churchill River in the Hudson Bay, Canada
Illustration from 1883 showing Dena'ina hunting party harpooning a beluga in Cook Inlet, Alaska
Russian scientists working on the White Whale Program place transmitters onto whales in Sea of Okhotsk
Photo of two white whales cheek-to-cheek with two trainers
Beluga whales in an aquarium interacting with trainers
Beluga at the confluence of the Saint Lawrence and Saguenay Rivers
Video explaining conservation efforts in the Sea of Okhotsk, Russia
Photo of stamp showing two adults and one juvenile, swimming
Pictured on Faroe Islands stamp
Engravings on beluga bones
Mother sea otter with rare twin pups, Morro Bay, California. Sea otter twin births are rare, and the high demands on the mother usually result in one pup being abandoned.[16]
Sea otter ln Morro Bay, California
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Sea otter floating in Morro Bay, California
A sea otter's thick fur makes its body appear plumper on land than in the water
Skull, as illustrated by N. N. Kondakov
Sensitive vibrissae and forepaws enable sea otters to find prey using their sense of touch
A sea otter swimming on its back, holding a sea urchin and smashing a rock against it
Sea otters are keystone species and keep sea urchin populations in check. Its depopulation in the Aleutian Islands may have led to the decline of kelp and subsequently of sea cows.[17]
Sleeping sea otters holding paws, photographed at the Vancouver Aquarium, Vancouver, British Columbia, Canada.[18] Note the high buoyancy of the animals' bodies.
During mating, the male bites the nose of the female, often bloodying and scarring it
A mother floats with her pup on her chest. Georg Steller wrote, "They embrace their young with an affection that is scarcely credible."[19]
Sea otter, Kenai Fjords National Park, Alaska
John Webber's Sea Otter, circa 1788
Sea otter nursing pup. California has almost 3,000 sea otters, descendants of about 50 individuals discovered in 1938.
Sea otters keep kelp forests healthy by eating animals that graze on kelp
Remote areas of coastline, such as this area in California, sheltered the few remaining colonies of sea otters that survived the fur trade
Aleut men in Unalaska in 1896 used waterproof kayak gear and garments to hunt sea otters
Pelt sales (in thousands) in the London fur market – the drop beginning in the 1880s reflects dwindling sea otter populations.[20]
In the wake of the March 1989 Exxon Valdez oil spill, heavy sheens of oil covered large areas of Prince William Sound
Sea otters in the Olympic Coast National Marine Sanctuary – note the unusual shape of the hind feet, in which the outer toes are longest
Sea otters like this one near Moss Landing are a tourist attraction in the Monterey Bay area in California
Aleut carving of a sea otter hunt
Sea otters at the Lisbon Oceanarium show their flexibility when grooming
A close-up of a gray whale's double blow hole and some of its encrusted barnacles
Gray whale breaching
Gray whale spouting along shores of Yachats
A whale swims nearby Santa Monica Mountains.
Gray whale breaching off the coast of Santa Barbara, California
A gray whale viewed from above
A gray whale breaching in a lagoon on the coast of Mexico
A gray whale swims near surf on Nootka Island within residential range.
A gray whale in the water of Sakhalin.
Charles Melville Scammon's 1874 illustration of a gray whale
Joint American-Russian freeing effort of whales entrapped by ice floe in Beaufort Sea.
Steller sea lion skull
Relative sizes of sleeping Steller sea lion pup, adult female, and male on Yamsky Islands in the northeast Sea of Okhotsk
Steller sea lions congregate on rocks in the Gulf Islands of British Columbia
Adult bull, females, and pups near Juneau, Alaska
Steller sea lion pup (Kuril Islands, Russia)
Steller sea lions haul out on Amak Island
Steller sea lions near Vancouver Island
Steller sea lion releasing air underwater
Helophorus grandis
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Ribbon seal pup on the ice
Ribbon seal
The skull has a hole on the snout, large eye-sockets on either side, and flattens out on the top. There are no teeth visible.
The skull of a Steller's sea cow, Natural History Museum of London
There are two large, oval-shaped plates with a ridge running down the middle, and grooves running diagonally from either side of the ridge. There are many bristles of varying sizes and widths, but all are stiff at the base and taper out at the end. There are several small rectangular teeth with numerous holes in them.
Illustrations of the dentition of Steller's sea cow by Johann Christian Daniel von Schreber
An illustration of a dead Steller's sea cow on its side on a beach, with three men butchering it
Stejneger's 1925 reconstruction of Steller measuring a sea cow in 1742
On the left side of the rectangular stamp is a map of the Bering Sea showing Russia to the left and Alaska to the right, and a black line following the path of Bering's voyage which starts on the Kamchatka Peninsula, goes into the Aleutian Islands, then loops back around and ends in the Commander Islands. On the right side of the stamp is a large ship in a storm.
1966 Soviet postage stamp depicting Bering's second voyage and the discovery of the Commander Islands
On slightly yellow paper using black ink, there is Kotick the white seal with his arms protruding straight up out of the water. He is facing a sea cow who is darkly shaded, has large nostrils, small eyes, stocky body, and covered in seaweed. Behind Kotick is another sea cow who is eating seaweed, and in the background there are many other sea cows. One of the sea cows is sticking its tail out of the water, which resembles that of a dolphin. The coastline is visible to the right.
Kotick the white seal talking to sea cows in Rudyard Kipling's The Jungle Book (1895)
Anatomy of Littorina
Magnolia seeds and fruit on a tree in northern Argentina
Magnolia flowers in Wiesbaden, Germany
M. obovata
M. wilsonii
M. fraseri
M. macrophylla var. ashei flower in female phase
M. liliiflora
Magnolia × alba
Flowering Magnolia figo 'Purple Queen'
Magnolia tree in full bloom
Magnolia tree in Kenosha
Magnolia tree in the Fall.
Magnolia by Sarah Maloney
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A sea otter at Moss Landing, California, eating what appear to be Mya arenaria
Nebria bonellei in a colour plate from Jacobson 1905-1915
Abapertural view of the shell of Neptunea lyrata
Collared pika on Hatcher Pass, Alaska
Ochotona sp. fossils
Vegetation pile, drying on rocks for subsequent storage. Gad Valley, Snowbird Ski Resort, Little Cottonwood Canyon, Utah
American pika with mouthful of dried grass. Sequoia National Park, CA
Pika Ochotona sp. fossil distribution. Extinct pikas and Ochotona indet. are red, steppe pika O. pusilla blue, northern pika O. hyperborea green, other extant pikas black.[21][22][n 1]
Fossil occurrences of leporids and ochotonids and global environmental change (climate change, C3/C4 plants distribution).[21]
Walrus, labeled Ros marus piscis, is depicted in а 16th-century map of Scandinavia (the Carta Marina)
Photo of several walruses, with prominently displayed white pairs of tusks
Young male Pacific walruses on Cape Pierce in Alaska. Note the variation in the curvature and orientation of the tusks and the bumpy skin (bosses), typical of males.
Photo of walrus in ice-covered sea.
Walrus using its tusks to hang on a breathing hole in the ice near St. Lawrence Island, Bering Sea
Skull without tusk
Skull with tusks
Photo of five walruses on rocky shore
Walruses fighting
A pup of walrus at Kamogawa Seaworld, Japan
Photo of walrus head in profile showing one eye, nose, tusks, and "mustache"
Vibrissae of captive walrus (Japan)
Photo of two walruses in shallow water facing shore
Walruses leaving the water
Hunter sitting on dozens of walruses killed for their tusks
Photo of section of tusk
Walrus tusk engraving made by Chukchi artisans depicting polar bears attacking walruses, on display in the Magadan Regional Museum, Magadan, Russia
Trained walrus in captivity at SeaWorld San Antonio
Walrus being fed at Skansen in Stockholm, Sweden, 1908
Photo of two masks: In the center is the image of a face, surrounded by a ring, in turn surrounded by eight white rectangular pieces.
Walrus ivory masks made by Yupik in Alaska
Dutch explorers fight a walrus on the coast of Novya Zemlya, 1596
Walrus cows and yearlings (short tusks), photo courtesy USFWS
Euceratherium skeleton
This skull, in the collection of The Children's Museum of Indianapolis, displays the muskox's large horns.
Fossil Ovibos moschatus skull from prehistoric Siberia
Muskox family in east Greenland
Nunivak Island, Alaskan muskoxen in the 1930s, shown here in defensive formation
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Whitecoated pup
Harp seal mother nursing pup
Paro, a medical robot pet based on the harp seal
Pandora (1861) by Pierre Loison (1816–1886)
Jules Joseph Lefebvre: Pandora, 1882
Swedish soprano Christine Nilsson as Pandora by Alexandre Cabanel.[23] The Walters Art Museum.
Pandora trying to close the box she has opened. At left, the evils of the world taunt her as they escape. Engraving, based on a painting by F.S. Church.
A pithos from Crete, ca. 675 BC (Louvre Museum)
An Attic pyxis, 440–430 BC (British Museum)
Nicolas Régnier: Allegory of Vanity—Pandora, c. 1626. Régnier portrayed Pandora with a jar, not a box.
Pup of ringed seal.
Preparation of the ringed seal
skin of the ringed seal.
Harbor seal tooth
Harbor seal skull and jaws
Harbor seal colony in Helgoland, Germany
Pup nursing at Point Lobos
Picea used in coat-of-arms of Kuhmo, Finland
P. glauca sapling, Kluane National Park, Canada
Immature P. mariana cones, Ouimet Canyon, Ontario, Canada
P. pungens cone and foliage
P. abies wood
Spruce (Picea mariana) essential oil in a clear glass vial
Foliage and cones
White spruce taiga along the Denali Highway in the Alaska Range
A dwarf Alberta white spruce in Los Angeles County Arboretum and Botanic Garden
A dwarf Alberta spruce, with reversion in one branch
Black Hills spruce grown as bonsai
Needles and cones
Black spruce taiga, Copper River, Alaska.
Foliage, mature seed cone, and (center) old pollen cone
Sitka spruce forest in the Olympic Mountains, Washington
Felled Sitka spruce, Oregon Coast Range, 1918
Sitka spruce in the Hoh rain forest in Olympic National Park
End grain on P. sitchensis plank
Radially cut plank of P. sitchensis
Sitka spruce trees with burls, Olympic National Forest, Washington
Pine Forest in Vagamon, Southern Western Ghats, Kerala (India)
A Khasi pine in Benguet, Philippines
Huangshan pine (Pinus hwangshanensis), Anhui, China
Ancient Pinus longaeva, Nevada, USA
Illustration of needles, cones, and seeds of Scots pine (Pinus sylvestris)
A prescribed fire in a European black pine (Pinus nigra) woodland, Portugal
Logging Pinus ponderosa, Arizona, USA
Pinus sylvestris prepared for transport, Hungary
Edible seeds of the Korean pine (Pinus koraiensis)
Foliage and cones
Large P. monticola
Western white pine in St. Joe National Forest. Died in 1998 and was cut down in 1999.
Male catkins of Populus × canadensis
Populus nigra in autumn
Fastigiate black poplar cultivar of the Plantierensis group, in Hungary
Poplars dominate the flora of Khorog City Park, Gorno-Badakhshan, Tajikistan
Popular Populus variety G48 in Punjab, India; Jhalli Farms Village Niara/Hoshiarpur
Traditional Pamiris house
Rotor poplar and willow cuttings planter, planting a new nursery of poplar for biomass with short rotation
Harbor seal swimming