The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
328
A scorpion can hold its breath for up to 6 days.
19
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
Early American humans hunted car-size armadillos and used their shells for houses.
12
A 42-foot sperm whale has about 7 tons of oil in it.
209
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14