Sloths are very, very slow. So slow, most predators won’t even notice they’re there. Sloths have even evolved not to react to loud, sudden noises so they don’t accidentally blow their cover. They have no odor, either; the scent of algae and fungi on sloths’ fur identifies them more as plants than animals, camouflaging them from sight and smell. If a more active defense is required, don’t underestimate them! Two-fingered sloths can make their hair stand on end to appear larger, and have a pretty nasty bite if provoked. Three-fingered sloths, however, are stuck with the “raise your arms above your head and look big” tactic.