Bats sleep 18-20 hours per day.
5
A lion in the wild usually makes no more than twenty kills a year.
186
George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
7
The octopus does not have a blind spot.
273
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
The largest earthworm on record was found in South Africa and measured 22 feet.
151
Honeypot ants are a unique insect that use their own bodies as living storage pots of honey.
4