When dragonflies mate, their tails form a love heart.
22
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
Drivers kill more deer than hunters do.
660
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20