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 strangers in your dreams are actually people that you've seen in real life.
50
Your thumb is about the same size as your nose.
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If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140