An alligator can go through 2,000 to 3,000 teeth in a lifetime.
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It has been estimated that a bite from a grizzly bear can crush a bowling ball.
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Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
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Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
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Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
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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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