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
Female kangaroos have three vaginas.
2
Parrot parents "name" their children with a signature call.
112
Bats sleep 18-20 hours per day.
5
Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
2
A dairy cow can produce more milk when listening to music.
446