Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Most dust particles in your house come from dead skin.
48
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Your brain is 80% water.
525
Billions of neutrinos pass unnoticed through your body every second.
6
Diamonds can be shattered with a hammer.
-104
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101