Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Liquid TIDE laundry detergent glows under a blacklight.
96
All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
51
The average temperature at 40,000 feet above sea level is -60 F.
56
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Sound travels about 4 times faster in water than in air.
408