The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
Every human spent about half an hour as a single cell.
144
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
Mushrooms are more closely related to humans than they are to plants.
47
Research has determined that most people are happiest at 7:26pm on a Saturday night.
70
Babies crawl an average of 200m a day.
212
Yawns are more contagious among people with closer relationships.
163