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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The average person's skin weighs twice as much as their brain.
131
The world's shortest man measures only 21.5 inches.
73
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
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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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A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
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