One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Only 3% of bird species have penises.
0
The most expensive cow in the world was sold in 2009 for $1.2 million.
-3
Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
16
The seahorse is the only fish to have a neck.
12
When cats are happy, they may squeeze their eyes shut.
10