Jurmain, R., H. Nelson, and L. Kilgore. 1995. Essentials of Physical Anthropology. Second Edition. St. Paul: West Publishing Co.
Wolfe, L.D., L.S. Lieberman, and D.L. Hutchinson. 1994. Physical Anthropology: Laboratory Textbook. Fourth Edition. Raleigh: Contemporary Publishing Co.
Chapter 1: Introduction
Chapter 2: Development of Evolutionary Theory
Enter Evolution: Theory and History from UC Bereley with links to full text of Origin of Species, by Charles Darwin.
Colobus Monkeys
Lemurs
Patas Monkeys