Bats are nocturnal hunters and use echolocation to orient themselves by emitting high-frequency ultrasonic sounds in rapid succession and evaluating the calls' reflections. Yet, they have retained a ...

Spix’s disc-winged bats shrieked when they were first shown mealworms, a new food for them. Were they alarmed, or were they communicating their excitement to their fellow bats? Elisabeth King Tightly ...