Distinctive Male and Group of Females (IMAGE) La Trobe University Caption A distinctive male (top left) defends a group of females (yellow), one of which will eventually change sex to replace him. Credit Kevin Bryant Usage Restrictions For media usage only. Please credit Kevin Bryant. 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.