By weight, Bone is five times stronger than steel.
417
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
94
Mushrooms are more closely related to humans than they are to plants.
47
Babies crawl an average of 200m a day.
212
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.
21
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
The human sigh acts as a physiological reset button.
23
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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