When dragonflies mate, their tails form a love heart.
22
The oldest creature ever found was Ming the clam at an admirable 507 years old.
16
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
A scorpion can hold its breath for up to 6 days.
19
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492