echolocation
Bats in a crowd shift their sonar pitch to stay out of each other’s way
Eleven bent-winged bats wearing tiny microphones moved their calls away from playback noise, and a simple model showed how a whole flock could do…
Perth volunteers with bat detectors logged five species in 23 walks
Smartphone detectors that turn ultrasonic calls into audible sound let Wanneroo residents record a species never logged in their city before.