Because the animal has no front teeth, it must pull the food off with its lips. It chews with side teeth. The leafy diet contains almost all the water a sloth needs. The sloth does not hear well,but it has keen senses of smell and touch, which it depends on to find food. The sloth also has very good eyesight and it can turn its flexible neck far to each side so that it can see it almost every direction.
All sloths have three toes on each hind foot.
But the number of toes on their front feet varies. The number of claws on each front foot makes it easy to distinguish the animal from its two-toed relative. Sloths live alone or occasionally in pairs. A female sloth gives birth to one offspring a year. The newborn sloth has tiny claws, which it uses to climb onto its mother's belly soon after birth.