The bark of an older redwood tree is fireproof.
65
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
4.5 pounds of sunlight strike the Earth each day.
27
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
Each day, up to 150 species of life become extinct.
-23
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Scientists are now able to grow 'beating' heart tissue in a lab!
162
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9