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11 Of Ancient Earth’s Most Unbelievable Prehistoric Animals
For nearly 30 million years, a 2,000-pound beast known as the entelodont ruled a sweeping empire from Mongolia to what is now ...
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Alaska's "Polar Bear Lizard" Is The Tiny T-Rex Of The Ancient Arctic
A tyrannosaur that lived 70 million years ago in Alaska wasn't nearly as big as Tyrannosaurus rex, but it wasn't as small as ...