At present, 4 sloth species are listed as least concern on the IUCN Red List of threatened species. The maned three-toed sloth is vulnerable, while the pygmy three-toed sloth is critically endangered ...

Sloths mate and give birth while hanging in the trees. Three-toed sloth babies are often seen clinging to their mothers—they travel by hanging on to them for the first nine months of their lives.

The species is notably smaller than other species of sloths. An adult pygmy three-toed sloth weighs between 5.5 and 7.7 pounds and measures 19 to 21 inches in length. Their external ear canals are ...

Three-toed sloths are the slowest mammals on Earth ... So, they don't need to eat a lot. A sloth can take up to 50 days to digest a meal. They have the slowest metabolism of any non-hibernating ...

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 ...