100 Facts You Won’t Believe Are Real

Women’s hearts beat faster than men’s.

Babies are born without knee caps. They don’t appear until the child reaches 2-6 years of age.

Lemons turn from green to yellow because of temperature changes, not ripeness.

Men can read smaller print than women; women can hear better than men.

Your ribs move about 5 million times a year, every time you breathe.

A duck’s quack doesn’t echo, and no one knows why.

Intelligent people have more zinc and copper in their hair.

Dolphins sleep with one eye open!

Owls are the only birds who can see the color blue.

It is impossible to sneeze with your eyes open.