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.
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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.
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When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
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Indoor pollution is 10 times more toxic than outdoor pollution.
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4.5 pounds of sunlight strike the Earth each day.
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Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
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0.3% of solar energy from the Sahara is enough to power the whole of Europe.
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Scientists are working on a portable spray-on-skin that can heal severe wounds in just a few minutes.The spray mainly contains important proteins that can reprogram the injured cells to become stem cells, and back to young uniformed skin cells. So far they were able to accelerate healing process from 12 weeks to 21 days with a similar approach.
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