[Free Registration/Login may be required to access all resource tools.] This study guide looks at Darwin's theory of evolution and natural selection. It also looks at some of the evidence supporting the theory of evolution (comparative...

This Evolution video segment describes how the famous track fossils known as the Laetoli footprints might have been formed and what they can reveal about the creatures who left them.

Describes the evolution of dead plant matter into coal.

An overview of the Great Rift Valley complete with a discussion of the plate tectonics, volcanoes, and climate of the valley. Of particular interest is the section on Apekind to Mankind: Human Evolution in the Great Rift Valley. Reasons...