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
A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250
The seahorse is the only fish to have a neck.
12
The Basenji dog is the only dog that is not able to bark.
4
Condoms were originally made of animal intestines or linen.
347