Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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Mosquitoes don't just bite you, they also pee on you.
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When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
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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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Worker bees must visit around 4,000 flowers in order to make one tablespoon of honey.
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