A dairy cow can produce more milk when listening to music.
446
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 Basenji dog is the only dog that is not able to bark.
4
The elephant brain weighs about 6,000g.
274
Moths are unable to fly during an earthquake.
328