Today, the six living species of sloths are usually found dangling from tree branches, or going viral on YouTube. But sloths used to be a lot more diverse—and a lot bigger. The extinct ground sloths pursued all sorts of different lifestyles and came in just about every imaginable shape and size. Some were cow-like grazers; others might have been accomplished burrowers; and, believe it or not, a few even dined beneath the ocean waves. To read more on this story, click here:10 Big Facts About Giant Ground Sloths
