The smell of freshly cut grass is actually a plant distress call.
31
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
The average temperature at 40,000 feet above sea level is -60 F.
56
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Sound travels about 4 times faster in water than in air.
408
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
Scientists aren't sure what color dinosaurs were.
312
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71