Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
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
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31
The strangers in your dreams are actually people that you've seen in real life.
50