Three-toed sloths have the slowest metabolism of any mammal

These physical and behavioral adaptations minimize the sloth's energy expenditure,or metabolic rate.Three-toed sloths have the slowest metabolism of any mammal.The giant panda is second slowest,and two-toed sloths come in third.Moving slowly has allowed sloths to thrive in their treetop habitat.But it's also made the sloths themselves a great habitat for other organisms,including algae, which provides a little extra camouflage, and maybe even a snack.Sloths may not be giant anymore,but that doesn't make them any less remarkable.