Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Dogs have been man's pet for over 14,000 years.
224
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
An average cat has 1-8 kittens per litter and can have 2-3 litters per year. During her productive life, one female cat could have more than 100 kittens. A single pair of cats and their kittens can produce as many as 420,000 kittens in just 7 years.
10
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
A cow produces around 200,000 glasses of milk in her lifetime.
373
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