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 koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
The seahorse is the only fish to have a neck.
12