Squirrels forget where they hide about half of their nuts.
698
The head of a jellyfish is called the "Bell."
6
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
Unsinkable Sam (nickname of a German ship's cat) who served on 3 warships, one German, two British, all sank in action. The cat survived each sinking, floating away on wooden planks to rescue.
19
Jellyfish as a species are actually older than dinosaurs and sharks.
383
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79