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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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From dire wolves to giant bears: Meet the North American animals of the ice age
A strange cast of ferocious predators and giant herbivores lived here ... the ice age 20,000 years ago. In prehistoric North America, the short-faced bear (Arctodus simus) ruled the land.