The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Each day, up to 150 species of life become extinct.
-23
Balsa wood is classified as a hard wood!
41
One ragweed plant can release as many as one billion grains of pollen!
51
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108