The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
The average temperature at 40,000 feet above sea level is -60 F.
56
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
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
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Nylon is made from coal and petroleum.
42