Giant Short-Faced Bear

If you were a full-grown saber-toothed Smilodon, what animal should you think twice about before attacking? The giant short-faced bear! One of the largest bears to ever inhabit North America, Arctodus reached heights of 15 feet and weights of a ton and a half - twice the size of the average male grizzly bear. But Arctodus was far leggier than grizzlies and polar bears and probably faster.