Cubs are hairless and weigh between 10.5 to 17.5 ounces. They are dark in color with shades of … The sloth bear’s front legs are longer than its hind legs. Destruction of habitat and the ever-expanding human population are their main threats. Sloth bears do not hibernate but withdraw into caves or hollow tree trunks during prolonged rainy periods. Their front paws turn inward, and their toes are webbed together with the padding on the bottom. However, they will often become so focused on what they are doing that the bears don’t notice the presence of others. They are so named because early discoverers probably saw them hanging upside down from trees or due to their slow wandering walking-style, much like sloths. (FUN ANIMAL FACTS/WILDLIFE/SLOTHS) Sloths are adorable, slow-moving mammals native to Central and South America. Fun Sloth Facts for Kids.