Classified as critically endangered and believed to have a rapidly declining population and habitat area, pygmy three-toed sloths (Bradypus pygmaeus) are native exclusively to the island of Escudo de ...

WASHINGTON— The U.S. Fish and Wildlife Service today proposed protecting the pygmy three-toed sloth under the Endangered Species Act. The proposal responds to a 2013 petition filed after officials ...

The maned three-toed sloth is vulnerable, while the pygmy three-toed sloth is critically endangered and the sloth species at greatest risk of extinction. Sloths are primarily folivores, feeding mostly ...

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After a fruitful safari at Wilpattu National Park, wildlife photographer Rohan Fonseka and his colleagues ventured toward the ...

Edinburgh Zoo is hoping to welcome endangered sloth bears this summer – the first time the wildlife charity has looked after the vulnerable species.

Sloth bears are native to India and Sri Lanka ... new giraffe calf and asks for at least a $5 donation to help name the endangered reticulated giraffe. The male calf was born Friday.

Kansas City Zoo Welcomes Critically Endangered Eastern Black Rhinoceros Calf: 'We Are Thrilled' Because of a sloth's long gestation, the nocturnal mammals native to South America are well ...

The sloth is the world's slowest mammal, so sedentary that algae grows on its furry coat. The plant gives it a greenish tint that is useful camouflage in the trees of its Central and South ...