Dolphins have names for one another.
18
The head of a jellyfish is called the "Bell."
6
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Cats sleep for 70% of their lives.
8
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
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57