A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
Cats lose almost as much fluid in the saliva while grooming themselves as they do through urination!
205
Jellyfish as a species are actually older than dinosaurs and sharks.
383
In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
22