Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
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Balsa wood is classified as a hard wood!
41
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
Billions of neutrinos pass unnoticed through your body every second.
6
One cubic foot of gold weighs more than 1,200 pounds!
78
The average temperature at 40,000 feet above sea level is -60 F.
56