Sloths take two weeks to digest their food.
243
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
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
Rex the German Shepherd was a rescue dog with a bad temper. He refused to be fed by humans and would attack strangers, but he’s a changed dog after falling in love with Geraldine the goose!
10
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255