Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
One ragweed plant can release as many as one billion grains of pollen!
51
One cubic foot of gold weighs more than 1,200 pounds!
78
The storage capacity of human brain exceeds 4 Terrabytes.
140
Scientists aren't sure what color dinosaurs were.
312
Sound at the right vibration can bore holes through a solid object.
134
Iron weighs more after it rusts.
16