Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
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The head of a jellyfish is called the "Bell."
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It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
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Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
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When a male honey bee climaxes during sex, his testicles explode and then he dies.
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An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
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