Rapid Fish Evolution (IMAGE) University of Wyoming Caption This modified diagram from Nature Communications shows the region of Africa and the different types of fish that have evolved from hybridization that took place about 150,000 years ago. Credit Swiss Institute of Aquatic Science and Technology 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.