Only 3% of bird species have penises.
0
The oldest creature ever found was Ming the clam at an admirable 507 years old.
16
Squirrels forget where they hide about half of their nuts.
698
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
The Basenji dog is the only dog that is not able to bark.
4
The head of a jellyfish is called the "Bell."
6