Lucas Bustamante / Three Yellow spotted / Amazon river turtles (Podocnemis unifilis) on log in water, Yasuni National Park, Orellana, Ecuador, Vulnerable species.

Cyril Ruoso / South American river turtle (Podocnemis expansa) Pacaya-Samiria National Reserve, Amazon, Peru.

Luciano Candisani / South American River Turtle (Podocnemis expansa) hatchling, Oyapock River, Brazil

Luciano Candisani / South American River Turtle (Podocnemis expansa) hatchlings, Oyapock River, Brazil

Luciano Candisani / South American River Turtle (Podocnemis expansa) hatchling, Oyapock River, Brazil

Luciano Candisani / South American River Turtle (Podocnemis expansa) hatchlings in river, Oyapock River, Brazil

MYN / Andrew Snyder / South American Wood Turtle (Rhinoclemmys punctularia) looking up, Berbice River, Guyana, September. Meetyourneighbours.net project.

Christophe Courteau / Giant South American turtle (Podocnemis expansa) baby held in human hand. Adults are the largest river turtle in South America. Captive babies in a Breeding and Re-introduction Center , at Hato El Ced...

Cyril Ruoso / South American River Turtle (Podocnemis expansa) hatchling, part of artificial incubation program, Pacaya Samiria National Park, Peru

Daniel Heuclin / South american river / Arrau turtle (Podocnemis expansa) swimming, River Yapacani, Bolivian Amazona.

Daniel Heuclin / South american river / Arrau turtle (Podocnemis expansa) basking on rock by side of river, River Yapacani, Bolivian Amazona.

Daniel Heuclin / Chiquitana woman collecting eggs of South american river / Arrau turtle (Podocnemis expansa) Rio Yapakani, Bolivian Amazona.

Daniel Heuclin / Chiquitana woman collecting eggs of the South american river / Arrau turtle (Podocnemis expansa) River Yapakani, Bolivian Amazona.

Daniel Heuclin / South american river / Arrau turtle (Podocnemis expansa) climbing on to rock, River Yapacani, Bolivian Amazona.

Mark Bowler / Giant South American / Amazon River / Arrau Turtle (Podocnemis expansa) at water surface. Captive.

Pete Oxford / South American River Turtle (Podocnemis expansa) researchers weighing individual, part of captive breeding program, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) researchers weighing individual, part of captive breeding program, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) after laying eggs, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) after laying eggs, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) tracks, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) tracks being followed by researcher, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) nests being dug up for relocation to safer, higher ground, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) group basking, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) group basking, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) group basking, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) and Yellow-spotted Amazon River Turtle (Podocnemis unifilis) yearlings in rearing program, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) and Yellow-spotted Amazon River Turtle (Podocnemis unifilis) yearlings in rearing program, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) nests being dug up for relocation to safer, higher ground, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) yearling, part of reintroduction to the wild program, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) nests being dug up for relocation to safer, higher ground, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) yearling, part of reintroduction to the wild program, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) yearlings, part of reintroduction to the wild program, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) yearlings, part of reintroduction to the wild program, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) yearling being held by researcher, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) egg being dug up for relocation to safer, higher ground, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) nest being dug up for relocation to safer, higher ground, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) yearling, part of reintroduction to the wild program, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) researchers digging up nests for relocation, are watched by guard, part of reintroduction to the wild program, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) tracks, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) researchers taking biometric data, part of part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) rear flipper, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) carried back to river after biometric data was taken, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) yearlings, part of reintroduction to the wild program, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) researcher taking eggs for re-burial, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) having carapace marked for future identification, part of reintroduction to the wild program, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) after laying eggs, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) after laying eggs returning to river, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) after laying eggs returning to river, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) young held by girl, part of reintroduction to the wild program, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) after laying eggs returning to river, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) after laying eggs returning to river, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) after laying eggs returning to river, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) after laying eggs returning to river, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) researchers taking biometric data, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) after laying eggs, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Pete Oxford / South American River Turtle (Podocnemis expansa) after laying eggs, part of reintroduction to the wild program, Playita Beach, Orinoco River, Apure, Venezuela

Murray Cooper / Tawny-bellied Hermit (Phaethornis syrmatophorus) hummingbird feeding on flower, multi-flash image

Murray Cooper / South American River Turtle (Podocnemis expansa) and butterfly on log, Amazon

Mark Bowler / Eggs of Yellow-spotted Amazon river turtle {Podocnemis unifilis} and Giant South American / arrau turtle {Podocnemis expansa} for sale on market stall, Nanay, Iqutios, Peruvian amazon, Peru, September...

Mark Bowler / Eggs of Yellow-spotted Amazon river turtle {Podocnemis unifilis} and Giant South American / arrau turtle {Podocnemis expansa} for sale on market stall, Nanay, Iqutios, Peruvian amazon, Peru, August 20...

Mark Bowler / Eggs of Yellow-spotted Amazon river turtle {Podocnemis unifilis} and Giant South American / arrau turtle {Podocnemis expansa} for sale on market stall, Nanay, Iqutios, Peruvian amazon, Peru, August 20...

Mark Bowler / Eggs of Yellow-spotted Amazon river turtle {Podocnemis unifilis} and Giant South American / arrau turtle {Podocnemis expansa} for sale on market stall, Nanay, Iqutios, Peruvian amazon, Peru, August 20...

Claus Meyer / South American River Turtle (Podocnemis expansa) female near nest where she has laid her eggs, Amazon, Brazil

Claus Meyer / South American River Turtle (Podocnemis expansa) hatching, Amazon, Brazil

Claus Meyer / South American River Turtle (Podocnemis expansa) biologist returning tiny turtles to the Trombetas River, Amazon, Brazil

Claus Meyer / South American River Turtle (Podocnemis expansa) biologist returning tiny turtles to the Trombetas River, Amazon, Brazil

Claus Meyer / South American River Turtle (Podocnemis expansa) pair on beach of Trombetas River where it lays eggs, Amazon, Brazil

Claus Meyer / South American River Turtle (Podocnemis expansa) hatchling floating in river, Amazon ecosystem, Brazil

Claus Meyer / South American River Turtle (Podocnemis expansa) hatchlings racing to river after hatching from nest, Amazon ecosystem, Brazil

Claus Meyer / South American River Turtle (Podocnemis expansa) hatchlings racing to river after hatching from nest, Amazon ecosystem, Brazil

Claus Meyer / South American River Turtle (Podocnemis expansa) hatchlings racing to river after hatching from nest, Amazon ecosystem, Brazil

Claus Meyer / South American River Turtle (Podocnemis expansa) hatchling racing to river after hatching from nest, Amazon ecosystem, Brazil

Claus Meyer / South American River Turtle (Podocnemis expansa) hatchling emerging from shell surrounded by other eggs in nest, Amazon ecosystem, Brazil

Claus Meyer / South American River Turtle (Podocnemis expansa) hatchling emerging from egg buried in sand nest surrounded by eggs, Amazon ecosystem, Brazil

Claus Meyer / South American River Turtle (Podocnemis expansa) hatchling emerging from egg buried in sand nest, Amazon ecosystem, Brazil

Claus Meyer / South American River Turtle (Podocnemis expansa) hatchling emerging from egg buried in sand nest, Amazon ecosystem, Brazil

Claus Meyer / South American River Turtle (Podocnemis expansa) on a high beach of Trombetas River where it lays its eggs, Amazon ecosystem, Brazil

Claus Meyer / South American River Turtle (Podocnemis expansa) pair on a high beach of Trombetas River where it lays its eggs, Amazon ecosystem, Brazil

Claus Meyer / South American River Turtle (Podocnemis expansa) pair on a high beach of Trombetas River where it lays its eggs, Amazon ecosystem, Brazil

Claus Meyer / South American River Turtle (Podocnemis expansa) portrait, Amazon ecosystem, Brazil

Claus Meyer / South American River Turtle (Podocnemis expansa) on a high beach of Trombetas River where it lays its eggs, Amazon ecosystem, Brazil

Claus Meyer / South American River Turtle (Podocnemis expansa) young turtles racing to the water, Amazon, Brazil

Tim Laman / South American yellow footed tortoise (Geochelone denticulata) resting on riverbank, Tiputini Biodiversity Station, Orellana Province, Ecuador.

Lucas Bustamante / Yellow-footed tortoise (Chelonoidis denticulatus) in shallow water, Yasuni National Park, Orellana, Ecuador. Endangered.

Lucas Bustamante / Sulphur butterfly (Pieridae) extracting minerals from eye moisture of a Yellow-spotted Amazon River turtle (Podocnemis unifilis), Yasuni National Park, Orellana, Ecuador.

Joel Sartore / Photo Ark / South American wood turtle (Rhinoclemmys punctularia ssp.) male emerging from its shell. Endangered. Captive.

Eric Baccega / South American River Turtle swimming (Podocnemis expansa) Captive, occurs in South America.

Eric Baccega / South American River Turtle swimming (Podocnemis expansa) Captive, occurs in South America.