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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A dork is a whale's penis.
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Worker bees must visit around 4,000 flowers in order to make one tablespoon of honey.
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Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
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Female kangaroos have three vaginas.
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An alligator can go through 2,000 to 3,000 teeth in a lifetime.
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15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
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