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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Dire wolves actually existed, living up to 10,000 years ago before going extinct.
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The oldest creature ever found was Ming the clam at an admirable 507 years old.
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Macaques monkeys in Japan learned to steal purses and wallets, take out the coins, and use them to buy drinks and snacks from vending machines.
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Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
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