Elephant (IMAGE) University of Vienna Caption With the acoustic camera´s star-shaped array of microphones placed in front of the elephant the researchers are waiting patiently for her to vocalize while night falls. Credit © Gunnar Heilmann 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.