The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
There are so many kinds of apples that if you ate a new one everyday, it would take over 20 years to try them all.
34
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
You forget 90% of your dreams.
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Your body is creating and killing about 2.4 million red blood cells per second.
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A cow produces around 200,000 glasses of milk in her lifetime.
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