A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
A cow produces around 200,000 glasses of milk in her lifetime.
373
Only 3% of bird species have penises.
0
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
Sharks, like other fish, have their reproductive organs in their chests.
248