Some 80,000 years ago, our planet began to cool, heralding the dawn of the last ice age. This was a land of giants like the Woolly Mammoths, Saber-Toothed Cats, Dire Wolves, Giant Ground Sloths, and Glyptodonts.
In the rest of the Northern Hemisphere, however, the story was quite different. These lands had their own class of giants who evolved differently from their counterparts and became the masters of their domain. Check out 10 of these incredible creatures who once dominated the Old World.