Macrophages (IMAGE) Salk Institute Caption In an inflammatory environment (left) and normal environment (right) macrophages (green) engulf dead cells (pink). Credit Anna Zagorska and Matt Joens, Waitt Advanced Biophotonics Center, Salk Institute Usage Restrictions With 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.