And let's take a moment to listen to the sounds of your backyard, or one like yours. OK, that's not actually a bird whistling reveille. But when we invited people to send us sounds of nature, we heard ...

If a tree falls in a forest and no one is around to hear it, does it make a sound? Today, we know the answer is a resounding yes -- thanks to a bio-acoustic monitoring system that uses artificial ...

Bats live in a world of sounds. They use vocalizations both to communicate with their conspecifics and for navigation. For the latter, they emit sounds in the ultrasonic range, which echo and enable ...