at Washington University and Sanz and Fay's doctoral advisor. "There is no doubt in my mind that this research will lead to a much better understanding of chimpanzee ecology and behavior, and will set the stage for data collection for years to come. I also believe that this research also may lead to better models of the evolution of human evolution because these chimpanzees are so free from human interference."

Goodall, considered the world's foremost authority on chimpanzees, also found Morgan and Sanz's discovery of a nave chimpanzee population of such great interest that she visited the site last summer. In nearly 45 years of observing chimpanzees' behavior in their environment and working to gain their trust, Goodall's visit to Goualougo Triangle was the first at another study site other than her own in the forests of the Gombe National Park. Goodall was curious to see the naive chimpanzees that she had heard showed no fear of humans as well as interested in observing how these chimpanzees differed from those living at Gombe. Within the last few years, Goodall and other researchers have been comparing chimpanzee behaviors such as tool use and social traditions that are passed on from one individual to another through social learning.

The study of these "chimpanzee cultures" was limited to sites in East and West Africa, Sanz
'"/>

Contact: Susan Killenberg McGinn
susan_killenberg@aismail.wustl.edu
314-935-5254
Washington University in St. Louis
13-Mar-2003

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