Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
One third of the electricity produced on earth is used to power electric light bulbs!
75
Research indicates that plants grow healthier when they are stroked.
173
The bark of an older redwood tree is fireproof.
65
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5