Shane Gross / Invasive Lionfish (Pterois volitans) which have taken over and are wiping out native fish in the Atlantic ocean. The highest densities are in the northern gulf of Mexico. Destin, Florida, USA.

Shane Gross / Invasive Lionfish (Pterois volitans) which have taken over and are wiping out native fish in the Atlantic ocean. The highest densities are in the northern gulf of Mexico. Destin, Florida, USA.

Daniel Heuclin / Whistling heron (Syrigma sibilatrix sibilatrix), southern subspecies, native to Bolivia. Captive.

Thomas Marent / Keel-billed Toucan (Ramphastos sulfuratus), native to Central and South America

James Dunbar / Timelapse of a Tiger longwing (Heliconius hecale) forming a chrysalis. Controlled conditions. Native to South and Central America.

Jeff Foott / The Citadel Ruins, Cedar Mesa area, Bears Ears National Monument, Utah

Rosl Roessner/ BIA / Guira Cuckoo (Guira guira) group huddled together, native to South America

Edwin Giesbers / Golden lion tamarin (Leontopithecus rosalia) captive, occurs in the Atlantic Rainforest of Brazil. Critically endangered.

Claudio Contreras / Volcano rabbit (Romerolagus diazi) captive endemic to Mexico. Critically endangered species.

Claudio Contreras / Volcano rabbit (Romerolagus diazi) Mexico City, September. Captive, critically endangered species.

Claudio Contreras / Volcano rabbit (Romerolagus diazi) Mexico City, September. Captive, critically endangered species.

Pete Oxford / Osborne's Lancehead (Bothrops osbornei) juvenile showing differently colored tail tip used for caudal luring, native to South America

Pete Oxford / Fer-de-lance (Bothrops asper), native to South America

Thomas Marent / Black Howler Monkey (Alouatta caraya) female, native to South America

Thomas Marent / Black Howler Monkey (Alouatta caraya) female, native to South America

Pete Oxford / Marsupial Frog (Gastrotheca riobambae) tadpole, native to South America

Pete Oxford / Phantasmal Poison Dart Frog (Epipedobates tricolor), native to South America

Pete Oxford / Marsupial Frog (Gastrotheca orophylax), native to South America

Pete Oxford / Pacific Horned Frog (Ceratophrys stolzmanni), native to South America

Pete Oxford / Marsupial Frog (Gastrotheca orophylax) hiding in bromeliad, native to South America

Pete Oxford / Anthony's Poison Arrow Frog (Epipedobates anthonyi) male carrying tadpoles, native to South America

Pete Oxford / Glass Frog (Hyalinobatrachium aureoguttatum) pair, native to South America

Pete Oxford / Anthony's Poison Arrow Frog (Epipedobates anthonyi), native to South America

Pete Oxford / Glass Frog (Hyalinobatrachium aureoguttatum) underside showing internal organs, native to South America

Pete Oxford / Glass Frog (Hyalinobatrachium aureoguttatum) underside showing internal organs, native to South America

Pete Oxford / Glass Frog (Hyalinobatrachium aureoguttatum) underside showing internal organs, native to South America

Pete Oxford / Galapagos land iguana (Conolophus subcristatus) walking, South Plaza Island, Galapagos. Endemic.

Pete Oxford / Marine iguana (Amblyrhynchus cristatus) underwater. Fernandina Island. Galapagos, Endemic Species.

Konrad Wothe / Giant River Otter (Pteronura brasiliensis) swimming, native to South America

Ole Jorgen Liodden / Galapagos penguin (Spheniscus mendiculus) group underwater, Galapagos. Endemic.

Ole Jorgen Liodden / Woodpecker finch (Camarhynchus pallidus) using stick as a tool for foraging, Galapagos. Endemic.

Ole Jorgen Liodden / Marine iguana (Amblyrhynchus cristatus) silhouetted at sunrise, Galapagos Islands. Endemic.

Kevin Schafer / Pygmy Raccoon (Procyon pygmaeus) portrait, Cozumel Island, Mexico. Critically endangered endemic species.

Roland Seitre / Canada Lynx (Lynx canadensis) in snow, native to North America

Roland Seitre / Canada Lynx (Lynx canadensis), native to North America

Roland Seitre / Margay (Leopardus wiedii), native to Central and South America

Roland Seitre / Jaguarundi (Puma yagouaroundi), native to Central and South America

Roland Seitre / Margay (Leopardus wiedii) in tree, native to Central and South America

Roland Seitre / Jaguarundi (Puma yagouaroundi) portrait, native to Central and South America

Roland Seitre / Swift Fox (Vulpes velox) emerging from den, native to North America

Roland Seitre / Crab-eating Fox (Cerdocyon thous), native to South America

Roland Seitre / Coyote (Canis latrans) lying in grass, native to North America

Cyril Ruoso / Black Howler Monkey (Alouatta caraya) female resting in tree, native to South America

Roland Seitre / Branick's Giant Rat (Dinomys branickii) feeding on vegetation, native to South America

Roland Seitre / Branick's Giant Rat (Dinomys branickii) feeding on vegetation, native to South America

Roland Seitre / Black-footed Ferret (Mustela nigripes) near burrow, native to North America

Roland Seitre / Brown-throated Three-toed Sloth (Bradypus variegatus) feeding on leaf, native to Central and South America

Roland Seitre / Harlequin Poison Dart Frog (Dendrobates histrionicus) in defensive posture, native to South America

Stephen Dalton / Citrus swallowtail (Papilio demolius) in flight, controlled conditions, native to South and Central America and Caribbean

Kristel Richard / An Indian cowboy has lost his balance from a bronc or wild paint horse during the All Indian Rodeo, at the annual Indian Crow Fair, at Crow Agency, near Billings, Montana, USA, August 2011, Sequence 3...

Jeff Rotman / Matses Indian men hold a thick-bodied, 18-foot long Anaconda (Eunectes notaeus) that they killed during a night hunt. Amazon, Peru, November 2005.

ZSSD / Giant Anteater (Myrmecophaga tridactyla) young on mother's back, native to South America

Mark Carwardine / Hawaiian goose / Nene (Branta sandvicensis) looking down, Slimbridge, Gloucestershire, UK, Captive, native to Hawaii, USA, Vulnerable species, September

Pete Oxford / Amerindian woman, Winifred Brown, model released, using a Matape to strain liquid from mashed Cassava to make Cassava flour, Katoka, Rupununi, Guyana, February 2010. Model released

Pete Oxford / Macushi woman preparing cassava bread from Cassava / Yuca (Manihot esculenta), crop is harvested, peeled, grated, squeezed to a matape, sieved, and roasted into a large flat piece of bread, Fairview...

Pete Oxford / Macushi girl from Fairview Amerindian village, Iwokrama Reserve, Guyana, July 2009

ZSSD / Blue and Yellow Macaw (Ara ararauna) pair flying, native to South America

Stephen Dalton / Northern flying squirrel {Glaucomys sabrinus} gliding, controlled conditions, native to North America

Albert Lleal / Red-footed Tortoise (Geochelone carbonaria), native to South America

Jeff Vanuga / Native American Teepee rings on Table Mountain near Dubois, Shoshone reserve, Wyoming, USA, May 2009

Rob Tilley / Rock engravings of the native american Pueblo people, Chaco Culture National Historical Park, New Mexico, USA, February 2009

Philippe Clement / Silver / Creek / River maple (Acer saccharinum) leaf in autumn colours, native to eastern North America

ZSSD / Blue Poison Dart Frog (Dendrobates azureus) very tiny poisonous frog, Indian tribes use poison for arrows, native to South America, San Diego Zoo, California

ZSSD / Bighorn Sheep (Ovis canadensis) male, native to North America, San Diego Zoo Safari Park, California

Hiroya Minakuchi / Flower Hat Jelly (Olindias formosa), native to Brazil, Argentina and Japan

Albert Lleal / Giant Desert Hairy Scorpion (Hadrurus arizonensis) photographed under ultraviolet light showing fluoresence, native to southern North America and northern Mexico

ZSSD / Scarlet Macaw (Ara macao) pair kissing, native to South America

Michael Durham / Rainbow Trout (Oncorhynchus mykiss) pair underwater in Utah, a popular game fish native to coastal streams of the western US and introduced into the eastern US and worldwide

ZSSD / Giant Panda (Ailuropoda melanoleuca) named Mei Sheng on exhibit, native to Asia

Steven David Miller / Cuban tree frog (Osteopilus septentrionalis) native of West Indies introduced into Florida, USA

Pete Oxford / Blue and Yellow Macaw (Ara ararauna) pauses while feeding on palm fruit, native to Amazon rainforest, South America

Pete Oxford / Blue and Yellow Macaw (Ara ararauna) portrait, native to Amazon rainforest, South America

Michael Durham / Red-eyed Tree Frog (Agalychnis callidryas) portrait, native to Central and South America

Michael Durham / Red-eyed Tree Frog (Agalychnis callidryas), native to Central and South America

Michael Durham / Red-eyed Tree Frog (Agalychnis callidryas) in rain, native to Central and South America

Michael Durham / Red-eyed Tree Frog (Agalychnis callidryas) in rain, native to Central and South America

Michael Durham / Red-eyed Tree Frog (Agalychnis callidryas) in rain, native to Central and South America

Michael Durham / Red-eyed Tree Frog (Agalychnis callidryas) on flower petal, native to Central and South America

Michael & Patricia Fogden / Blue Poison Dart Frog (Dendrobates azureus) very tiny frog used by Indian tribes to poison tips of arrows, native to South America

Gerry Ellis / Blue Poison Dart Frog (Dendrobates azureus) secretes a fluid from its skin which is used by indigenous Indians to poison the tips of arrows, native to South America

ZSSD / Great Horned Owl (Bubo virginianus) portrait, native to North America

ZSSD / California Condor (Gymnogyps californianus) portrait, native to California

ZSSD / California Condor (Gymnogyps californianus) portrait, native to California

Heidi & Hans-Juergen Koch / Cranwell's Horned Frog (Ceratophrys cranwelli) has a large mouth and voracious appetite, native to South America

Gerry Ellis / Bengal Tiger (Panthera tigris tigris) portrait, Hilo Zoo, Hawaii, native to India and southeast Asia

Pete Oxford / Chagra cowboy portrait with roses in his hat band, on an overnight ride at a hacienda to herd cattle, Andes Mountains, Ecuador

Gerry Ellis / Keel-billed Toucan (Ramphastos sulfuratus) portrait showing barbed tongue, native to Mexico and Central America

Pete Oxford / Two Chagra cowboys on an overnight ride at a hacienda to herd cattle, Andes Mountains, Ecuador

Heidi & Hans-Juergen Koch / Glass Frog (Cochranella antisthenesi) transparent skin shows body filled with eggs, very rare and fragile frog, native to Central and South America

Heidi & Hans-Juergen Koch / Cayenne Slender-legged Tree Frog (Osteocephalus leprieurii) completely developed young frog sitting in shallow water, native to South America

Gerry Ellis / Black-faced Vervet Monkey (Cercopithecus aethiops) pair playing on camera and tripod, Barbados, Caribbean, native to East and southern Africa

Matthias Breiter / Kodiak Bear (Ursus arctos middendorffi) with mouth agape, native to Kodiak Island, Alaska

Matthias Breiter / Kodiak Bear (Ursus arctos middendorffi) four week old cub, native to Kodiak Island, Alaska

Jim Brandenburg / Inuits dog sledding in midnight sun, Ellesmere Island, Nunavut, Canada

ZSSD / Polar Bear (Ursus maritimus) swimming underwater, native to North America

Jim Brandenburg / Purple rock is catlinite or pipestone used by Native Americans to make the peace pipe, Pipestone Creek, Pipestone National Monument, Minnesota