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 actually are like furry living ecosystems all by themselves! Algae grows on their fur and they are also home to "sloth moths" who call them home and drink their tears.
Ann BurtonEvery move a sloth makes is with purpose, which is more than most of us can say about 90% of the time.
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 Burton