Discussion Questions: Tracing Human Evolution to Its Roots

This diagram shows the known hominid fossils, organized according to the time periods form which they are known. The question marks scattered throughout this diagram indicate that there are many more questions than answers about the relationships among these fossils -- in other words, precisely how they were related to one another. Discuss some of the hypotheses indicates by different possible evolutionary paths on this diagram.

Discuss the differences between fossil relatives of modern humans and actual ancestors.