Clearing Roads in the Republic of Congo (IMAGE) Lincoln Park Zoo Caption A logging concession in the Republic of Congo. Researchers from Lincoln Park Zoo in Chicago are working with the timber company to understand the impacts of selective logging practices and human disturbance on wild western lowland gorilla and chimpanzee populations. Credit Sharon Dewar Usage Restrictions Only use with proper credit to Lincoln Park Zoo. 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.