A Chick (IMAGE) Hokkaido University Caption The research team discovered that the male "androgen" hormone plays an important role in the ovarian development of female chicken embryo. Credit Shusei Mizushima 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.