Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
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Every human spent about half an hour as a single cell.
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A person will create enough saliva to fill two average size swimming pools during his lifetime.
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Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
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The human brain uses approximately as much energy as a 10 watt light bulb.
120
The human sigh acts as a physiological reset button.
23
We share 70% of our DNA with a slug.
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