Gorilla at Woodland Park Zoo, Seattle (IMAGE) University of Washington Caption This is a western lowland gorilla seated at the Woodland Park Zoo in Seattle. This species is from western equatorial African. The great ape ancestors, from which gorillas, chimps and humans descended, lived in Africa between 8 million and 12 million years ago. Credit Allison C. Gray Usage Restrictions Credit line requested, but not required. 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.