The fastest growing nail is on the middle finger.
A person with tetrachomacy is able to see almost 100 million colors.
The human body literally glows.
Many feet bones don’t harden until you’re an adult.
More human twins are being born now than ever before.
The average adult human has two to six pounds of bacteria in his or her body.
The stars and flashes of light you see when you rub your eyes are called “phosphenes.”
Illacme tobini is a millipede that needs very little introduction: It has 414 legs, no eyes, 200 poison glands, and four penises.
Human beings have as many brain cells in their stomachs as cats have in their brains.