Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
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A zoo in China gave a gay penguin couple the opportunity to raise a chick.
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Jellyfish as a species are actually older than dinosaurs and sharks.
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The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
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Squirrels forget where they hide about half of their nuts.
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