There are approximately three chickens for every human on Earth.
13
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
Condoms were originally made of animal intestines or linen.
347
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
Cats and dogs can hear ultrasound.
350
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
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
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25