Planarian Flatworms Large (IMAGE) eLife Caption These are 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.