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
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
Jellyfish as a species are actually older than dinosaurs and sharks.
383