Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
The smell of freshly cut grass is actually a plant distress call.
31
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Each day, up to 150 species of life become extinct.
-23
The sun is 330,330 times larger than the earth.
75
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13