When cats are happy, they may squeeze their eyes shut.
10
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Worker bees must visit around 4,000 flowers in order to make one tablespoon of honey.
5
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
The oldest creature ever found was Ming the clam at an admirable 507 years old.
16
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9
Lurch, a Watusi bull, had the largest horns in the world.
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