African bullfrog, Chobe National Park, BotswanaAfrican bullfrog, Chobe National Park, Botswana
African elephants at twilight, Chobe National Park, Botswana
Aloe in bloom, Southern MadagascarAloe in bloom, Southern Madagascar
Antarctic fur seal pup, South Georgia IslandAntarctic fur seal pup, South Georgia Island
Asiatic cheetah caught by camera trap, Naybandan Wildlife Reserve, IranAsiatic cheetah caught by camera trap, Naybandan Wildlife Reserve, Iran
Atlantic puffin male, NorwayAtlantic puffin male, Norway
Aye-aye feeding on coconut, MadagascarAye-aye feeding on coconut, Madagascar
Barn owl dead after car collision, Klamath Basin National Wildlife Refuge, California, USABarn owl dead after car collision, Klamath Basin National Wildlife Refuge, California, USA
Bird egg diversity, Western Foundation of Vertebrate Zoology, Los Angeles, California, USABird egg diversity, Western Foundation of Vertebrate Zoology, Los Angeles, California, USA
Black-browed albatross, Saunders Island, Falkland IslandsBlack-browed albatross, Saunders Island, Falkland Islands
Bonobo female, native to Congo (DRC)Bonobo female, native to Congo (DRC)
Bonobo grimacing, native to Congo (DRC)Bonobo grimacing, native to Congo (DRC)
Bornean orangutan, native to BorneoBornean orangutan, native to Borneo
Brown mouse lemur in man's hand, MadagascarBrown mouse lemur in man's hand, Madagascar
Slide thumbnail
Dead gull on beach, NetherlandsDead gull on beach, Netherlands
Antandroy tribesman with fossilized elephant bird egg, Southern MadagascarAntandroy tribesman with fossilized elephant bird egg, Southern Madagascar
Elephant walking through lobby to its favorite mango tree, Luangwa Valley Lodge, ZambiaElephant walking through lobby to its favorite mango tree, Luangwa Valley Lodge, Zambia
Emperor penguin family, AntarcticaEmperor penguin family, Antarctica
Emperor penguin parent with chicks, AntarcticaEmperor penguin parent with chicks, Antarctica
Extinct tasmanian wolf, Sydney, AustraliaExtinct tasmanian wolf, Sydney, Australia
Dr. Tim Flannery with specimens of extinct marsupials, Australian Museum, Sydney, Australia
Flower Hat jelly, Monterey Bay Aquarium, California, USA
Goanna and aboriginal art, Central Australia
Hippos at dusk, Luangwa River, Zambia
Horseshoe crabs spawning at dusk, Delaware Bay, New Jersey, USA
Icicles and sun, Alta Bay, Antarctica
Impalas alarmed, Serengeti National Park, Tanzania
King protea, Kirstenbosch National Botanical Garden, Cape Town, South Africa
Leopard in thornbush, Chobe National Park, Botswana
Lichen-mimic katydid camouflaged on tree, Sabah, Borneo
Lion at twilight, Masai Mara Reserve, Kenya
Lionesses at twilight, Chobe National Park, Botswana
Lowland rainforest, Cockscomb Basin, Belize
Malaspina glacier, Wrangell-St. Elias National Park, Alaska, USA
Monarch butterflies in flight, Michoacan, Mexico
Octopus trees in spiny desert, Southern Madagascar
Juvenile orangutan swinging, Sepilok Reserve, Sabah, Borneo
Orchids in rainforest, Ranomafana National Park, Madagascar
Orphaned bornean orangutans, Sepilok Reserve, Sabah, Borneo
Pacific tree frogs with deformed hind legs, Corvallis, Oregon, USA
Parson's chameleon, Madagascar
Rafflesia flower, Mt Kinabalu National Park, Sabah, Borneo
Ring-tailed lemur with baby, Berenty Reserve, Madagascar
Sandstone layers, Comb Ridge, Utah, USA
Scarlet macaw in flight, Tambopata National Reserve, Peru
Scientist collecting katydids at night in rainforest, La Selva, Costa Rica
Tourists explore beach from which Ernest Shackleton left for South Georgia, Elephant Island, Antarctica
Silversword at sunset, Mauna Kea, Hawaii, USA
Snow geese landing, Klamath Basin National Wildlife Refuge, California
Squatter with manioc, Madagascar
Summer lake, Netherlands
Uluhe fern, Hawaii Volcanoes National Park, Hawaii, USA
Verreaux's sifakas in trees, Berenty Reserve, Madagascar
Visitor looking at rock art, Horseshoe Canyon, Canyonlands National Park, Utah, USA
Weasel sportive lemur hiding from human, Madagascar
Western tarsier clinging to tree, Sabah, Borneo
Winter solstice in woods, Netherlands
Zebras grazing, Masai Mara Reserve, Kenya
African bullfrog, Chobe National Park, BotswanaAfrican bullfrog, Chobe National Park, Botswana
African elephants at twilight, Chobe National Park, Botswana
Aloe in bloom, Southern MadagascarAloe in bloom, Southern Madagascar
Antarctic fur seal pup, South Georgia IslandAntarctic fur seal pup, South Georgia Island
Asiatic cheetah caught by camera trap, Naybandan Wildlife Reserve, IranAsiatic cheetah caught by camera trap, Naybandan Wildlife Reserve, Iran
Atlantic puffin male, NorwayAtlantic puffin male, Norway
Aye-aye feeding on coconut, MadagascarAye-aye feeding on coconut, Madagascar
Barn owl dead after car collision, Klamath Basin National Wildlife Refuge, California, USABarn owl dead after car collision, Klamath Basin National Wildlife Refuge, California, USA
Bird egg diversity, Western Foundation of Vertebrate Zoology, Los Angeles, California, USABird egg diversity, Western Foundation of Vertebrate Zoology, Los Angeles, California, USA
Black-browed albatross, Saunders Island, Falkland IslandsBlack-browed albatross, Saunders Island, Falkland Islands
Bonobo female, native to Congo (DRC)Bonobo female, native to Congo (DRC)
Bonobo grimacing, native to Congo (DRC)Bonobo grimacing, native to Congo (DRC)
Bornean orangutan, native to BorneoBornean orangutan, native to Borneo
Brown mouse lemur in man's hand, MadagascarBrown mouse lemur in man's hand, Madagascar
Slide thumbnail
Dead gull on beach, NetherlandsDead gull on beach, Netherlands
Antandroy tribesman with fossilized elephant bird egg, Southern MadagascarAntandroy tribesman with fossilized elephant bird egg, Southern Madagascar
Elephant walking through lobby to its favorite mango tree, Luangwa Valley Lodge, ZambiaElephant walking through lobby to its favorite mango tree, Luangwa Valley Lodge, Zambia
Emperor penguin family, AntarcticaEmperor penguin family, Antarctica
Emperor penguin parent with chicks, AntarcticaEmperor penguin parent with chicks, Antarctica
Extinct tasmanian wolf, Sydney, AustraliaExtinct tasmanian wolf, Sydney, Australia
Dr. Tim Flannery with specimens of extinct marsupials, Australian Museum, Sydney, Australia
Flower Hat jelly, Monterey Bay Aquarium, California, USA
Goanna and aboriginal art, Central Australia
Hippos at dusk, Luangwa River, Zambia
Horseshoe crabs spawning at dusk, Delaware Bay, New Jersey, USA
Icicles and sun, Alta Bay, Antarctica
Impalas alarmed, Serengeti National Park, Tanzania
King protea, Kirstenbosch National Botanical Garden, Cape Town, South Africa
Leopard in thornbush, Chobe National Park, Botswana
Lichen-mimic katydid camouflaged on tree, Sabah, Borneo
Lion at twilight, Masai Mara Reserve, Kenya
Lionesses at twilight, Chobe National Park, Botswana
Lowland rainforest, Cockscomb Basin, Belize
Malaspina glacier, Wrangell-St. Elias National Park, Alaska, USA
Monarch butterflies in flight, Michoacan, Mexico
Octopus trees in spiny desert, Southern Madagascar
Juvenile orangutan swinging, Sepilok Reserve, Sabah, Borneo
Orchids in rainforest, Ranomafana National Park, Madagascar
Orphaned bornean orangutans, Sepilok Reserve, Sabah, Borneo
Pacific tree frogs with deformed hind legs, Corvallis, Oregon, USA
Parson's chameleon, Madagascar
Rafflesia flower, Mt Kinabalu National Park, Sabah, Borneo
Ring-tailed lemur with baby, Berenty Reserve, Madagascar
Sandstone layers, Comb Ridge, Utah, USA
Scarlet macaw in flight, Tambopata National Reserve, Peru
Scientist collecting katydids at night in rainforest, La Selva, Costa Rica
Tourists explore beach from which Ernest Shackleton left for South Georgia, Elephant Island, Antarctica
Silversword at sunset, Mauna Kea, Hawaii, USA
Snow geese landing, Klamath Basin National Wildlife Refuge, California
Squatter with manioc, Madagascar
Summer lake, Netherlands
Uluhe fern, Hawaii Volcanoes National Park, Hawaii, USA
Verreaux's sifakas in trees, Berenty Reserve, Madagascar
Visitor looking at rock art, Horseshoe Canyon, Canyonlands National Park, Utah, USA
Weasel sportive lemur hiding from human, Madagascar
Western tarsier clinging to tree, Sabah, Borneo
Winter solstice in woods, Netherlands
Zebras grazing, Masai Mara Reserve, Kenya