Sheephead (IMAGE) University of California - Santa Barbara Caption All sheephead are born female and some morph into males at various stages in the lifecycle. Exact controls over sex change are still unknown but likely include environmental conditions and pressures. Credit Scott Hamilton Usage Restrictions None 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.