5 Killer Prehistoric Mammals You’d Never Domesticate

Many of today’s domesticated mammals are cute and cuddly, especially when they’re young. But what about their ancestors? Now that’s a very different story.

Tens of millions of years ago, it was literally dog-eat-dog—nearly everything was ferocious—so animals had to be tough and ferocious just to to survive.

These were definitely critters you would not want to encounter, for you’d only last a few seconds around most of them.

Check out some of these beasts in the video, such as the ‘terminator’ pigs and fanged squirrels.

And this is only a handful of the ferocious mammals, not to mention dinosaurs, that were around back then—it definitely wasn’t a very people-friendly environment.

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