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
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
When dragonflies mate, their tails form a love heart.
22
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
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