Sloths, they are cute, cuddly, and are not exactly the epitome of ferocity, but this hasn’t always been the case. Just a few thousand years ago, give or take, they were giants, like, elephant sized giants. And the largest of these prehistoric sloths was the Megatherium, which roamed South America with confidence thanks to its gargantuan body. However, its size wasn’t the only thing it had going, as it possessed other tools, which allowed it to become a highly competitive animal in an ecosystem filled with other megafauna, and not to mention deadly smilodons.