Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
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In 1949, an official boxing match between a bear and a man was held. The bear won.
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The octopus does not have a blind spot.
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The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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