Each day, up to 150 species of life become extinct.
-23
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
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
Balsa wood is classified as a hard wood!
41
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108