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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Your body is creating and killing about 2.4 million red blood cells per second.
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Only about 2% of the world population has green eyes.
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You forget 90% of your dreams.
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A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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