Your ears secrete more earwax when you are afraid than when you aren't.
229
Condoms were originally made of animal intestines or linen.
347
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1