Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Pure water (H2O) does not conduct electricity on its own.
46
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17