Sloths, like all living things, need to defecate, which usually happens once per week. Pooping while hanging upside down might seem like an easier option, but sloths are incredibly fussy when it comes ...

But that doesn't mean they're boring. In fact, sloths are one of the most extreme animals on the planet, and not just because they poop only once a week. First of all, sloths really are extremely ...