Chapter 20 - Related Web Sites

• Travel through the galleries and exhibits of the University of California's Museum of Paleontology.

• Explore the experiments of Miller and Urey as they attempted to determined how chemical evolution began on the early earth in The Chemical Aspects of the Origin of Life.

• Learn more about the geologic time scale and rock strata in Geology and Geologic Time.

• View images and read more about the Archosaurs, Pterosaurs, and Dinosaurs in Welcome to the Hall of Archosaurs.