Only 3% of bird species have penises.
0
A killer whale's heart beats 30 times a minute under water, 60 times a minute on the surface.
30
Some breeds of chickens lay colored eggs!
51
Eagles mate while airborne.
44
Armadillos can get leprosy.
13
By feeding hens certain dyes they can be made to lay eggs with multi-colored yolks.
40
Dogs have four toes on their hind feet, and five on their front feet.
179