Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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Australian Graham Barker has been collecting his own belly button fluff every day since 1984 - keeping it in storage jars.
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"Fish odor syndrome" is a rare genetic disorder that causes people to smell like rotten fish.
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A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
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