In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
Your heart will pump about 212 million liters in its lifetime.
26
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
The human brain is more active during sleep than during the day.
28
Human hair and fingernails continue to grow after death.
7
Poor eyesight (myopia) is associated with higher IQ.
232
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82