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ANI040-00537

A grey-legged douroucouli or owl monkey (Aotus lemurinus) named “Cheeky” at the Houston Zoo.

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ANI040-00536

A grey-legged douroucouli or owl monkey (Aotus lemurinus) named “Cheeky” at the Houston Zoo.

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ANI040-00537

A grey-legged douroucouli or owl monkey (Aotus lemurinus) named “Cheeky” at the Houston Zoo.

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ANI040-00536

A grey-legged douroucouli or owl monkey (Aotus lemurinus) named “Cheeky” at the Houston Zoo.

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ANI040-00420

A critically endangered, male Sumatran orangutan, Pongo pygmaeus abelii, at Rolling Hills Wildlife Adventure.

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A critically endangered, male Sumatran orangutan, Pongo pygmaeus abelii, at Rolling Hills Wildlife Adventure.

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ANI040-00387

Endangered Francois’ langurs (Trachypithecus francoisi) at Omaha Henry Doorly Zoo. This species exhibits ‘aunting’ behavior, meaning several females will take care of the same baby. The bright orange coloration (which disappears by age six months) is thought to allow for easy tracking of the young one no matter which surrogate mom has it at any time.

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ANI040-00372

An endangered female Guatemalan mantled howler (Alouatta pigra) at the Gladys Porter Zoo in Brownsville, Texas.

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ANI040-00366

Two endangered red-shanked douc langurs (Pygathrix nemaeus) from the Endangered Primate Rescue Center in Cuc Phuong National Park, Vietnam.

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Two endangered red-shanked douc langurs (Pygathrix nemaeus) from the Endangered Primate Rescue Center in Cuc Phuong National Park, Vietnam.

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ANI040-00364

Two endangered red-shanked douc langurs (Pygathrix nemaeus) from the Endangered Primate Rescue Center in Cuc Phuong National Park, Vietnam.

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Two endangered red-shanked douc langurs (Pygathrix nemaeus) from the Endangered Primate Rescue Center in Cuc Phuong National Park, Vietnam.

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ANI040-00362

Two endangered red-shanked douc langurs (Pygathrix nemaeus) from the Endangered Primate Rescue Center in Cuc Phuong National Park, Vietnam.

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ANI040-00359

An endangered male mandrill (Mandrillus sphinx) at Rolling Hills Wildlife Adventure near Salina, Kansas.

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ANI067-00383

A vulnerable Olympic torrent salamander (Rhyacotriton olympicus) at the Sedgwick County Zoo in Wichita, Kansas.

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ANI070-00149

An endangered Okinawa newt (Cynops ensicauda popei) at the Sedgwick County Zoo in Wichita, Kansas.

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A ruin lizard (Podarcis sicula) at the Sedgwick County Zoo in Wichita, Kansas.

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A ruin lizard (Podarcis sicula) at the Sedgwick County Zoo in Wichita, Kansas.

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A common collared lizard (Crotaphytus collaris) at the Sedgwick County Zoo in Wichita, Kansas

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A common collared lizard (Crotaphytus collaris) at the Sedgwick County Zoo in Wichita, Kansas

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common collared lizard (Crotaphytus collaris) at the Sedgwick County Zoo in Wichita, Kansas

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A Timor python (Malayopython timoriensis) at the Sedgwick County Zoo in Wichita, Kansas.

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A coastal tailed frog (Ascaphus truei) at the Sedgwick County Zoo in Wichita, Kansas.

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BIR010-00096

A puna ibis (Plegadis ridgwayi) at the Sedgwick County Zoo in Wichita, Kansas.

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A puna ibis (Plegadis ridgwayi) at the Sedgwick County Zoo in Wichita, Kansas.

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The greater yellow-headed vulture (Cathartes melambrotus) at the Sedgwick County Zoo in Wichita, Kansas.

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The greater yellow-headed vulture (Cathartes melambrotus) at the Sedgwick County Zoo in Wichita, Kansas.

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