Natural Birth (IMAGE) University of Tokyo Caption The study looked at the timing of spontaneous (not induced) births among Holstein cows. Credit Copyright: The University of Tokyo, Photo Credit: Dr. JY Li, The University of Tokyo Usage Restrictions Please use image in relation to this press release 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.