What are the sloths’ peculiarities?
Sloths have to maintain a flexed posture, and they maintain this posture by having muscles inserted at specific points. Brachioradialis and biceps femoris muscles will attach distally, allowing no activity of the flexors against gravity. Sloths, in general, are very slow creatures and tend to lay in a more crouched position, this type of posture is known as the exploratory gait. By having their hands placed perpendicular to supports, this provides them with support in this gait. During Below branch locomotion both primate and sloths have their direct their forces medially. The hook-like the claw of the sloth is formed by a prominent m. flexor digitorum profundus that controls the distal phalanges and keeps the interphalangeal joint in the required shape.