Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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Your ears secrete more earwax when you are afraid than when you aren't.
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The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
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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.
17
Some Chinese-made hair bands were fashioned from recycled condoms.
131
15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1