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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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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Your body is creating and killing about 2.4 million red blood cells per second.
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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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The strangers in your dreams are actually people that you've seen in real life.
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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.
16
Your thumb is about the same size as your nose.
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