Condoms were originally made of animal intestines or linen.
347
In Brazil, there's a species of cockroach that eats eyelashes, usually those of young children while they are asleep.
151
15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1
Most of the dust underneath your bed is actually your own dead skin.
251
If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13