When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
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 seahorse is the only fish to have a neck.
12
Dolphins have names for one another.
18
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2