<I>Myotis daubentonii</I> (IMAGE) University of Chicago Press Journals Caption Bats must carefully balance physiological mechanisms in response to variation in factors such as ambient temperature, availability of food, and mating requirements. Myotis daubentonii funnels a prey insect with the aid of the wing into the tail pouch to eat it during flight. Credit Marko Koenig (Mammalian Ecology Group, JLU Giessen) Usage Restrictions Please cite the owner of this photo when publishing. This photo may be freely used, with proper citation, by reporters as part of news coverage. Non-reporters must contact the University of Chicago Press or the owner of the photo credit for permission. 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.