Chapter 20: The Evolutionary History of Life

Puzzling Fossils in a Frozen Wasteland

20.1 The Fossil Record: A Guide to the Past

20.2 The History of Life on Earth

20.3 The Effects of Plate Tectonics

20.4 Mass Extinctions: Worldwide Losses of Species

20.5 Adaptive Radiations: Increases in the Diversity of Life

20.6 The Origin and Adaptive Radiation of Mammals

20.7 Human Evolution

When Antarctica Was Green

Biology in the News: Maybe Those Frog Teeth Weren’t Useless After All

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