Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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Only 3% of bird species have penises.
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Cats lose almost as much fluid in the saliva while grooming themselves as they do through urination!
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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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If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
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Female kangaroos have three vaginas.
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