The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
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The word "impossible" dropped in use by 50% over the course of the 20th century
5
Bats sleep 18-20 hours per day.
5
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
In 1995, a man named Shawn Nelson stole a tank from the US Army and took it for a joyride on a highway in California.
12
If NYC were its own country, and the NYPD was its army, it would be the twentieth-best-funded army in the world, just behind Greece and just ahead of North Korea.
14