Denmark has twice as many pigs as there are people.
66
There's a lizard known as the 'Jesus Lizard' that can run across water.
11
Sharks have been on the planet longer than trees.
14
Cats and dogs can hear ultrasound.
350
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
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
A puppy is born blind, deaf, and toothless.
16