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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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.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
Only about 2% of the world population has green eyes.
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The strangers in your dreams are actually people that you've seen in real life.
50
Lurch, a Watusi bull, had the largest horns in the world.
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