Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Balsa wood is classified as a hard wood!
41
Billions of neutrinos pass unnoticed through your body every second.
6
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Scientists aren't sure what color dinosaurs were.
312