Rex the German Shepherd was a rescue dog with a bad temper. He refused to be fed by humans and would attack strangers, but he’s a changed dog after falling in love with Geraldine the goose!
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Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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An alligator can go through 2,000 to 3,000 teeth in a lifetime.
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When cats are happy, they may squeeze their eyes shut.
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The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
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