Because sloths' metabolisms are so slow, they don't exhibit many external signs of stress and it can be hard to determine their mood.
Ann BurtonSloths have low metabolisms, so they have to move slowly in order to conserve energy. However, they aren't aimless or "lazy" and they actually move around quite a lot - just very, very slowly.
Ann BurtonEvery move a sloth makes is with purpose, which is more than most of us can say about 90% of the time.
Ann Burton