Condoms were originally made of animal intestines or linen.
347
Mosquitoes don't just bite you, they also pee on you.
11
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
Your ears secrete more earwax when you are afraid than when you aren't.
229