Linnaeus' two-toed Sloth

Sloths spend most of their lives hanging upside down from trees. Their long, curved claws ensure a firm grip when dangling. Another important adaptation is the anchoring of internal organs such as the stomach and liver to the rib cage to prevent their weight squashing the lungs, allowing the sloths to breathe
 

The Linnaeus’ two-toed sloth spends most of the day sleeping. When awake, it moves at a speed of less than 2 km/h, rarely descending to change trees. One of the few reasons it will descend is to defecate, which only occurs about once a week. However, sloths can be surprisingly fast when in immediate danger.

The humidity of the rainforest enables algae to grow on the sloth’s furry coat, which offer additional camouflage against predators.