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THE GENIUS OF CHARLES DARWIN -- ILLUSTRATED SCREENPLAY & SCREENCAP GALLERY |
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This is all sedimentary rock,
meaning it's laid down at the bottom of the sea,
mud coming down layer after layer after layer.
That's what the fossils are actually in.
On a beach like this, the pounding sea
gradually exposes different layers of rock
and, within them, hidden treasure.
A history of past life on Earth.
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