sloth The film zootopia which attractes large numbers of customers , described a metropolis animals living. In this film ,the sloth, a funny and popular character, becomes a hotshot animal. Sloths were found in the rainforest canopies of Central and South America. There are two species of sloths : two-toed and three-toed. Most of sloths are about the size of a small dog and they have short ,flat heads, and grey skin. The most different characteristic compared to other animal is that Sloths are extremely slow-moving mammals .Since they have a slow metabolism, they need very little food. Some sloths even stay in one tree for years. What’s more, sloths also sleep upside-down for up to 18 hours at a time.