If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
34
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
Research has determined that most people are happiest at 7:26pm on a Saturday night.
69
On average, there's 100 billion neurons in the human brain.
83
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
If the human eye was a digital camera, it would have 576 megapixels.
25
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
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