Coho Salmon Head (image) University of Washington Share Print E-Mail Caption This is the head of an adult coho salmon. Credit Andy Dittman/Northwest Fisheries Science Center Usage Restrictions Photo credit required. Share Print E-Mail 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.