Congolese Bonobo (IMAGE) University of California - Berkeley Caption A bonobo, formerly called a pygmy chimpanzee, is eating fruit in the Democratic Republic of the Congo. Bonobos, chimps, gorillas and humans have all evolved their own gut microbes based on an ancestral gut flora in our most recent common ancestor. Credit Alexander Georgiev photo, courtesy of Science Usage Restrictions None 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.