Looking images - Joel Sartore

A mallard (Anas platyrhynchos) duckling.

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BIR032-00267

A mallard (Anas platyrhynchos) duckling.

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ANI108-00054

An endangered Peruvian woolly monkey (Lagothrix cana) at Cetas-IBAMA, a wildlife rehab center in Manaus, Brazil. This is administered by IBAMA, the government wildlife agency of Brazil.

This is a juvenile female. She had severe growth deformities due to poor nutrition as she was being reared as a pet by a citizen here. Her mother was likely killed so that she could be sold into the pet trade.

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BIR021-00089

Aplomado falcon (Falco femoralis pichinchae) a federally-listed species, at the Milford Nature Center.

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SCE036-00009

A man looks out over the landscape of the Charles M Russell Refuge, Montana.

Picture of a staff member with a vulnerable collared lemur (Eulemur collaris) at the Lemur Conservation Foundation.

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ONA007-00150

A staff member with a vulnerable collared lemur (Eulemur collaris) at the Lemur Conservation Foundation.

Picture of a conservationist feeding a vulnerable collared lemur (Eulemur collaris) at the Lemur Conservation Foundation.

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ONA007-00151

A conservationist feeding a vulnerable collared lemur (Eulemur collaris) at the Lemur Conservation Foundation.

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ONA007-00149

A conservationist feeding a vulnerable collared lemur (Eulemur collaris) at the Lemur Conservation Foundation.

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PEO029-00004

A teenage girl looks out the window in Elkhorn, Nebraska.

Shown are the Cuc Phuong Turtle Conservation Center staff members searching for a vulnerable Southeast Asian softshell turtle (Amyda cartilaginea).

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ONA007-00086

Shown are the Cuc Phuong Turtle Conservation Center staff members searching for a vulnerable Southeast Asian softshell turtle (Amyda cartilaginea).

Shown are the Cuc Phuong Turtle Conservation Center staff members searching for a vulnerable Southeast Asiatic softshell turtle (Amyda cartilaginea).

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ONA007-00087

Shown are the Cuc Phuong Turtle Conservation Center staff members searching for a vulnerable Southeast Asiatic softshell turtle (Amyda cartilaginea).

A pair of vulnerable 1-year-old fossas, Cryptoprocta ferox, at the Omaha Zoo. This is Madagascar's largest mammalian predator, and its numbers are declining in the wild

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ANI062-00140

A pair of vulnerable 1-year-old fossas, Cryptoprocta ferox, at the Omaha Zoo. This is Madagascar’s largest mammalian predator, and its numbers are declining in the wild

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ESA001-00519

Sara, the endangered (IUCN) and federally endangered whooping crane (Grus americana), at the Audubon Center for Research of Endangered Species. This is an educational bird.