Gorillas (IMAGE) Dian Fossey Gorilla Fund International Caption Infant gorillas experienced significant increases in mortality with increased group density and intergroup encounter rates. Credit Dian Fossey Gorilla Fund Usage Restrictions Image may be used to illustrate this story. License Licensed 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.