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.

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 ...

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 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 ...