Only 3% of bird species have penises.
0
The lifespan of mammals is about 1 and a half billion heartbeats.
127
The two oldest cats on record lived to 38 and 34 years old, both were owned by the same owner and lived off a diet of bacon, eggs, broccoli and coffee.
12
Sheep, goats, octopuses, and toads have rectangular pupils.
7
All bonobo chimpanzees are bisexual!
29
The reindeer is the only mammal that can see UV light.
17
Over 10,000 birds a year die from smashing into windows.
47