Only 3% of bird species have penises.
0
Sharks, like other fish, have their reproductive organs in their chests.
248
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
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
Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
47