Planarian Flatworms Small (IMAGE) eLife Caption Planarian flatworms maintained under standard laboratory conditions (brown) are pictured with animals subjected to intense light exposure (partially or fully depigmented), along with a schematic representation of a porphyrin molecule (pink). Credit The Pellettieri Lab Usage Restrictions This image is free to be reused, as long as it is credited appropriately. 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.