Your thumb is about the same size as your nose.
124
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The human sigh acts as a physiological reset button.
23
If the human eye was a digital camera, it would have 576 megapixels.
25
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
Mushrooms are more closely related to humans than they are to plants.
47