One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
The octopus does not have a blind spot.
273
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
There are approximately three chickens for every human on Earth.
13
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8