When dragonflies mate, their tails form a love heart.
22
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
The head of a jellyfish is called the "Bell."
6
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Mosquitoes don't just bite you, they also pee on you.
11