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In Search of Earth's Secrets

In Search of Earth's Secrets
Ever wonder how we know so much about earth’s history? Scientists travel back in time using cores of rock or sediment from the seafloor. Fossils of animal or plant remains tell us detailed stories of what the earth looked and felt like hundreds or even millions of years ago. Evidence found in these cores help us understand why the dinosaurs went extinct or how the climate shifted between warm and cold periods. Scientists can even better predict earthquakes or discover new life forms.

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