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
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Dogs have been man's pet for over 14,000 years.
224
Cats lose almost as much fluid in the saliva while grooming themselves as they do through urination!
205
Alligators can live up to 100 years.
337
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
Condoms were originally made of animal intestines or linen.
347