The human brain uses approximately as much energy as a 10 watt light bulb.
120
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Gorillas can catch human colds and other illnesses.
205
It takes approximately 12 hours for food to entirely digest.
93
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73