The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
Condoms were originally made of animal intestines or linen.
347
Cockroaches can live for 9 days after their head has been cut off.
140
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
Sniffologists have the job of sniffing armpits.
4