Only 3% of bird species have penises.
0
A cow produces around 200,000 glasses of milk in her lifetime.
373
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
The male seahorse carries babies and 'gives birth' to them instead of the female.
7