Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
According to studies, men change their minds two to three times more often than women.
72
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
One cubic foot of gold weighs more than 1,200 pounds!
78
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118