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Mass extinctions
by
Explains various theories about how dramatic changes in the earth's surface could have caused periodic mass extinctions, with an emphasis on the disappearance of the dinosaurs.
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Explains various theories about how dramatic changes in the earth's surface could have caused periodic mass extinctions, with an emphasis on the disappearance of the dinosaurs.
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"Explains various theories about how dramatic changes in the earth's surface could have caused periodic mass extinctions, with an emphasis on the disappearance of the dinosaurs."
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