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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Only about 2% of the world population has green eyes.
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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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The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
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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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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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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).
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