#Echolocation is costly for small bats when they’re calling loudly
“#Echolocation is costly for small bats when they’re calling loudly” Nathusius’s pipistrelle bat. Credit: René Janssen Calling in the ultrasonic range enables small bats to orient themselves in the dark and track down tiny insects. Louder calls travel farther, improving a bat’s ability to detect their prey. It was long assumed that echolocation does not…