Dr. Claude Bouchard and Monique Chagnon (IMAGE) Pennington Biomedical Research Center Caption Dr. Claude Bouchard and Monique Chagnon Credit Ernie Ballard/Pennington Biomedical Usage Restrictions NONE License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.