Poor eyesight (myopia) is associated with higher IQ.
232
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Babies crawl an average of 200m a day.
212
If your DNA was stretched out it would reach to the moon 6,000 times.
256
The average sperm cell swims at 8 inches per hour.
4
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
Enamel is hardest substance in the human body.
61
Research has determined that most people are happiest at 7:26pm on a Saturday night.
69