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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It has been scientifically proven that stroking a cat can lower one's blood pressure!
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A human being loses an average of 40 to 100 strands of hair a day.
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One human hair can support 3 ounces.
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It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
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The human body contains over a billion miles of DNA.
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The human brain uses approximately as much energy as a 10 watt light bulb.
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Mushrooms are more closely related to humans than they are to plants.
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