Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Cows can sleep standing up, but they can only dream lying down.
745
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
The Platypus used to be considered a myth like Bigfoot and the Yeti.
18
Nicole Kidman is scared of butterflies.
65
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