The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
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
Cats lose almost as much fluid in the saliva while grooming themselves as they do through urination!
205
The Pistol Shrimp can snap its claws together to create a sound of 218 decibels, louder than as supersonic jet at full speed. It only lasts for 1 millisecond. The snapping action also creates a bubble that is greater than 5000 Kelvin, close to the surface temperature of the sun.
21
A group of unicorns is called a blessing.
304
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20