Cichlid fish from African Lake Tanganyika (IMAGE) University of Basel Caption Ophthalmotilapia ventralis, a cichlid from Lake Tanganyika. Credit Photo: Adrian Indermaur, University of Basel/Zoology Usage Restrictions With current release only. 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.