Philippine flying lemur, illustration
Pyrotherium, illustration
Varanosaurus, illustration
Aivukus, illustration
Arsinoitherium, illustration
Stegodon ganesa, illustration
Oxydactylus prehistoric camel, illustration
Mouse in a willow tree, X-ray
Red-eyed tree frog
Dimetrodon, illustration
Smilodon sabretooth cat, illustration
Thick-tailed bushbaby
Domestic cat, illustration
Monkey, X-ray
Squirrel, X-ray
Flying dragon, X-ray
Tupaia tree shrews, illustration
Red-necked wallaby with leaf in mouth
Mammal brain on film, X-ray
Weasel, X-ray
European badger, X-ray
Leaf-nosed fruit bat, illustration
Squirrels on a branch, X-ray
Cimolestes, illustration
Ambelodon, illustration
Bison latifrons, illustration
Hesperocyon, illustration
Bearded dragon and flower, coloured X-ray
Treecreeper, X-ray
Parakeets, coloured X-ray
Bird on azalea branch, X-ray
Lizards, X-ray
Buzzard, X-ray
Lizard on giant hogweed, X-ray
Frogs on leaves, X-ray
Lilac-breasted roller perching on twig
Lilac-breasted roller perching on stump
Esmeralda's robber frog
Elegant stubfoot toad
Montagu's harrier, artwork
Short-toed treecreeper, artwork
Ocellated lizard, artwork
Preserved three-toed amphiuma
Preserved greater siren
Red squirrel, artwork
Cat, X-ray
Mouse and Physalis plant, X-ray
Common genet, artwork
Driftwood catfish
Pamphobeteus tarantula
Argonaut shell, X-ray
Sulawesi red-knobbed hornbill
Protohydrochoerus giant capybara, illustration
Prehistoric creodonts, illustration
Coryphodon and Titanoides, illustration
Titanoides, illustration
Coryphodon, illustration
Thoatherium, illustration
Protypotherium, illustration
Palaeotherium, illustration
Hyracotherium, illustration
Eotitanops, illustration
Palaeosyops, illustration
Giraffokeryx, illustration
French Bulldog puppy
Border Terrier puppy
Elephant teeth
Cycas cycad and lizard, coloured X-ray
European shag, artwork
Montpellier snake, artwork
Green woodpecker, artwork
Bonelli's eagle, artwork
Common kingfisher fishing, artwork
Grey heron fishing, artwork
Coot and irises, X-ray
Duck and flowers, X-ray
Great spotted woodpeckers, artwork
European goldfinch, 19th century artwork
Strawberry poison-dart frogs
Strawberry poison-dart frog
Pool frog, X-ray
Lizard, X-ray
Indian python, X-ray
Veiled chameleon, X-ray
Spiny-tailed monitor, X-ray
Sparrowhawk, X-ray
Sparrowhawk head, X-ray
Three tadpoles
Python, X-ray
Speagull, X-ray
Penguins mating, artwork
Glass frog
Peregrine falcon skeleton
Feathers, X-ray
House gecko
Robin feather
Lizard, illustration
Long-eared owl, X-ray
Goldcrest on a branch, X-ray
Ring-necked dove, X-ray
Rainbow lorikeet
Lilac-breasted roller in flight
Thylacine, illustration
Greater ani
Yellow-browed tody-flycatcher
Skinks, X-ray
Sago palms (Cycas revoluta), X-ray
Chinese windmill palms (Trachycarpus fortunei), X-ray
Glyptodon, illustration
Potamotherium, illustration
Viperine water snake, artwork
Little grebe, artwork
Nightingale, artwork
Cetti's warbler, artwork
Reed warbler, artwork
Common magpie, artwork
Common reed bunting, artwork
Kentish plover, artwork
European bee-eater, artwork
Streaked fantail warbler, artwork
Corn bunting, artwork
Sparrowhawk, artwork
European honey buzzard, artwork
Fire salamander, artwork
Spanish pond turtle, artwork
Moorish gecko, artwork
Western green lizard, artwork
Iberian wall lizard, artwork
Slow worm, artwork
Aesculapian snake, artwork
Southern smooth snake, artwork
Grass snake, artwork
Asp viper, artwork
Red-legged partridge, artwork.
Common wood pigeon, artwork
Turtle dove, artwork
Common cuckoo, artwork
Nightjar, artwork
Great spotted woodpecker, artwork
Woodlark, artwork
Crag martin. Artwork
Grey wagtail, artwork
White-throated dipper, artwork
Wren calling, artwork
Blackbird, artwork
Eurasian blackcap, artwork
Common whitethroat, artwork
Dartford warbler, artwork
Subalpine warbler, artwork
Chiffchaff, artwork
Firecrest, artwork
Eurasian nuthatch, artwork
Coal tit, artwork
Long-tailed tit, artwork
Crested tit, artwork
Great tit, artwork
Blue tit, artwork
Golden oriole, artwork
Eurasian jay, artwork
European starling, artwork
House sparrow, artwork
Chaffinch, artwork
Rock bunting, artwork
Greenfinch, artwork
Alpine accentor, artwork
Eastern brown snake
Female snow bunting
Bengal florican
Great crested grebe
Jackson's horned chameleon, X-ray
Bird on camellia shrub, X-ray
Woodpecker, X-ray
Wild boars, artwork
Polar bear sitting on a ice floe
Female adult orangutan
Rufous-tailed hummingbird
Ardipithecus ramidus, artwork
Lizard and flowers, X-ray
European hedgehog, artwork
European mole digging, artwork
Common shrew, artwork
Edible doormouse, artwork
European hare, artwork
European badger, artwork
Beech marten on a rock, artwork
Least weasel, artwork
Red fox, artwork
Wild boar, artwork
Sivapithecus, illustration
Frog life stages in a pond, artwork
Herd of styracosaurs chasing an oviraptorsaurus