By weight, Bone is five times stronger than steel.
417
Poor eyesight (myopia) is associated with higher IQ.
232
Only humans shed emotional tears.
331
Your thumb is about the same size as your nose.
124
Our brains have a negativity bias and will remember bad memories more than good ones.
15
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
If your DNA was stretched out it would reach to the moon 6,000 times.
256