Reconstruction of Fish Family Ancestries (IMAGE) University of California - Riverside Caption Reconstruction of fish family ancestries, based on DNA. Species with placentas in red, without placentas in black. Poeciliidae species run from the 8:00 position to 3:00. Non-Poeciliids were included to improve accuracy of the reconstruction. Credit Andrew Furness / University of Hull 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.