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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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.
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Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
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An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
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Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
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