Only 3% of bird species have penises.
0
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
When you shave a guinea pig it looks like a little hippo.
19
Squirrels forget where they hide about half of their nuts.
698
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
The seahorse is the only fish to have a neck.
12
Lurch, a Watusi bull, had the largest horns in the world.
32