The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
10
Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
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
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255