Lobsters have blue blood.
476
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
There are approximately three chickens for every human on Earth.
13
A 42-foot sperm whale has about 7 tons of oil in it.
209
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
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20