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
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
Gorillas can catch human colds and other illnesses.
205
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
The male seahorse carries babies and 'gives birth' to them instead of the female.
7