In 1949, an official boxing match between a bear and a man was held. The bear won.
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Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
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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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There's a rare breed of pig that looks like a sheep.
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Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
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Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
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