Why Do Sloths Hang Upside Down?

What amazing adaptations make sloths unique? In this video, Museum Educator Jason talks with Sash the sloth’s handler about these incredible creatures. Sloths evolved so that their hands are relaxed in a closed position. This is more similar to a bird’s claw than to a human’s hand, which is relaxed in an open position. Their claws are also very sturdy, with bone underneath. These adaptations mean that they can hang upside down from trees while they sleep!