Ants have tiny magnetic compasses in their antennae which help them navigate.
9
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
There's a lizard known as the 'Jesus Lizard' that can run across water.
11
The octopus does not have a blind spot.
273
A dairy cow can produce more milk when listening to music.
446