[nomel]

Yes great at hanging, like a coat hanger. You can only easily pull with a hook. With a thumb, you can push, pull, and easily grip, with much less risk of "unhooking". That's the same risk for a leopard: unhooking. Sloth can't climb a thinner vertical rope, or hang from a thinner branch, because their grip strength is relatively weak, due to the leverage. And, good luck using any sort of tool, like a stick to get terminates, with giant hooked claws!