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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An alligator can go through 2,000 to 3,000 teeth in a lifetime.
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The ancestor of all domestic cats is the African Wild Cat which still exists today.
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Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
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The oldest recorded elephant lived for 82 years.
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Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
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