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.
15
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
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Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
The world's shortest man measures only 21.5 inches.
73
The human brain is more active during sleep than during the day.
28
You forget 90% of your dreams.
256
If your DNA was stretched out it would reach to the moon 6,000 times.
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