Dogs have been man's pet for over 14,000 years.
224
Dolphins have names for one another.
18
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
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
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
A giraffe's kick is so powerful that it can decapitate a lion.
216
Cows can sleep standing up, but they can only dream lying down.
745