By weight, Bone is five times stronger than steel.
417
Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
34
Bats sleep 18-20 hours per day.
5
It takes at least eight bees all their life to make one single teaspoonful of honey.
3
Mushrooms are more closely related to humans than they are to plants.
47
Sony researchers have developed a refrigerator that only opens when you smile.
9
Romans used a plant called Silphium as contraception. They had so much sex that they drove it into extinction.
24