Embryonic Chicken Penis (IMAGE) Cell Press Caption This is an embryonic chicken penis (pseudocolored red) viewed under a scanning electron microscope. Credit C.L. Perriton and M.J. Cohn Usage Restrictions Credit Required 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.