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
Denmark has twice as many pigs as there are people.
66
When dragonflies mate, their tails form a love heart.
22
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
A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250
Dolphins have names for one another.
18