Bats rely on their hearing more than any other mammal. After all, bats navigate the night sky by hearing the results of their echolocation, their natural sonar system. Turns out that’s just the ...

Slow-motion video and high-resolution imaging show that horseshoe bats can deform the shape of their outer ears for superior echolocation. Cynthia Graber reports Bats see with their ears. Which are ...

"Certain bats can deform the shapes of their ears in a way that changes the animal's ultrasonic hearing pattern. Within just one tenth of a second, these bats are able to change their outer ear shapes ...

Anybody who has been passed by an ambulance at high speed has experienced a physical effect called the Doppler shift: As the ambulance moves toward the listener, its motion compresses the siren's ...