Three-toed sloths are mammals of the family Bradypodidae. Overall, there are four species of sloths in the family, with all of them dwelling in Central America and in the northern region of South America. Their hobby is hanging on the crown of a tree in the rainforest. Their big, sharp claws prevent them from falling off the tree. Sloths sleep 15 hours a day, but even when awake, they move quite slowly.