Bobblehead Bats: Head Waggles Help Catch Prey

"The sound is going to be hitting the ears in different ways throughout that dynamic process, and it's those differences the bats exploit," said study author Melville Wohlgemuth, a postdoctoral researcher at Johns Hopkins University in Baltimore. Wohlgemuth said he and his colleagues are interested in the ways the brain integrates auditory information and vocalizations. The bats hear these echoes and adjust their movements and future vocalizations to better capture prey.