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Deep History of Life on Earth

Summary

The record of life on Earth stretches over 3 billion years. Deep time and Earth history are keys to understanding the present.

The record of life on Earth stretches over 3 billion years, with evidence ranging from chemical signatures in rocks and ancient biological molecules to fossils of colossal dinosaurs and early humans. Developed in support of the 2012 HHMI Holiday Lectures on Science Changing Planet: Past, Present, Future.

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