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 ...

The extinct giant ground sloths were some of the only mammals that had digestive systems large enough to process the huge avocado seeds whole. They feasted on the fruit and then dispersed the ...

Leisurely by nature, the sloth’s slowness is just one way this amazing animal is built to survive. Here’s a look at some other fascinating facts about these tired little tree-dwellers!