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The fastest herbivore is the Pronghorn Antelope. It can reach sustained speeds of 61mph (98 km per hour), far surpassing any predator in it's native North American habitat. The only land animal that tops it is the cheetah which can do 70 mph, though it can't sustain it's top speed for nearly as long as the Pronghorn. The Cheetah is actually the reason the pronghorn can run so fast. During the last Ice Age the North American Cheetah roamed the country causing an arms race between the two species. Pronghorns had to be very fast to win against the Cheetah. Now that the North American Cheetah is extinct we are left with this herbivore that is much faster than it really needs to be to survive. It's fastest natural predior is probebly the wolf which can only do about 40 mph. I think that in many ten's of thousands of years we may see the Pronghorn's top speed diminish as nature allows slower Pronghorns to survive, thus changing the gene slightly.

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14y ago

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