The two toed sloth is a mammal of the genus Two toed sloth in the family Malodontidae, also known as the sloth. Body length is about 70 centimeters, tail degeneration, weight is about 9 kilograms; There are two claws on the forelimbs and three claws on the hind limbs, with well-developed claws; The body hair is long and thick, green due to the growth of lichens and algae, the skull is short and tall, the nose and snout are relatively short, and it has a zygomatic arch. Distributed in South and Central America. Residing in damp forests. Lost the ability to move on the ground, hung upside down on a tree with four limbs, moved slowly, slept upside down after eating, and could even sleep in this position for a long time, swimming. Highly sensitive to low temperatures, feeding on leaves, tender shoots, and fruits.