Rattlesnake mating sessions have been known to last more than 22 hours.
232
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Female kangaroos have three vaginas.
2