Phagocytosis Conceptual Art (IMAGE) American Museum of Natural History Caption Phagocytosis, or cell eating, is a key feature of eukaryotic cells that is not present in the archaea or bacteria. Current genomic data provides the key to this and other complex processes with hints at how they may have originated. Credit © AMNH/S. Thurston Usage Restrictions Can be used with appropriate credit 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.