The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
The largest breed of rabbit is the Flemish Giant.
65
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Your body is creating and killing about 2.4 million red blood cells per second.
17
There is a persistent storm in Venezuela that produces lightning 140 to 160 nights a year, 10 hours per day and up to 280 times per hour and has been going since at least the 16th century.
25
Your thumb is about the same size as your nose.
124
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
The strangers in your dreams are actually people that you've seen in real life.
50