
Long before humans evolved, our planet was home to some of the most vicious predators ever to have lived. Step back in time to one of the most amazing eras in the history of planet earth and meet terrifying ancient predators.
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Air Date: 2007-08-19
In the ice age, the dire wolf was larger and more powerful than any modern-day wolf. Why did it vanish while the smal...
Air Date: 2007-08-19
The Sabertooth dominated the primal landscape of the Americas for nearly two million years, then suddenly, mysterious...
Air Date: 2007-09-15
This short-faced bear was twice the size of a grizzly and could outrun a horse. It roamed North America for a million...
Air Date: 2009-04-28
The Terror Birds of South America may be the most unusual predators ever to roam the face of the Earth. Until about f...
Air Date: 2009-04-28
Megalodon. It was the biggest predator to ever swim the oceans of the world. For 20 million years, this ferocious 50-...
Air Date: 2009-10-12
At four feet wide and 1,000 pounds, the killer pig was a prehistoric battle tank that dominated the North American la...
Air Date: 2009-10-12
Hyaenodon created a reign of terror by just using its head. It dominated with this one lethal weapon that could disp...