The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Out of all the senses, smell is most closely linked to memory.
146
Most dust particles in your house come from dead skin.
48
For every gallon of sea water, you get more than a quarter pound of salt.
45
Each day, up to 150 species of life become extinct.
-23
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61