Thank you to the following resources:

Cells, Heredity, and Classification. Holt Science and Technology Series. Holt, Reindardt, and Winston. 2007. P 148-161

Vitruvian Man, Leonardo DaVinci. Image gathered from on November 12, 2009 at 8:18 am.

Austalopithecus Skull. Image gathered from on November 12, 2009 at 8:54 am. This was used in the timeline.

Homo Habilis. Artist Representation. Image gathered from on November 11, 2009 at 9:43 am.
This was used in the timeline., for their timeline creator. NOTE: Timeline was made specifically for this site. It was not created by an outside source.
Also in timeline: Question mark courtesy of Image gathered on November 13, 2009 at 10:00 am

Genetics Research Increasingly Finds “Race” a Null Concept. Scott Shane. Baltimore Sun. April 4, 1999.  

The Mind’s Big Bang. PBS Evolution Series. WGBH Educational Foundation and Clear Blue Sky Productions. 2001.

Rice, Stanley A. "evolution of religion." Encyclopedia of Evolution. New York: Facts On File, Inc., 2006. Science Online. Facts On File, Inc. EEVO0178&SingleRecord=True (accessed November 3, 2009).

Blood Telling a Story, summery of James Shreeve's Article. COPYRIGHT 2006 National Geographic Society