A cow produces around 200,000 glasses of milk in her lifetime.
373
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Bats sleep 18-20 hours per day.
5
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
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132