The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
If Earth's history was condensed into twenty-four hours, life would've appeared at around 4am, land plants at 10:24pm, dinosaur extinction at 11:41pm, and human history would’ve began at 11:58:43pm.
21
Only about 2% of the world population has green eyes.
36
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
You forget 90% of your dreams.
256