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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You forget 90% of your dreams.
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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.
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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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An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
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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
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
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