It is late at night, and we are silently watching a bat in a roost through a night-vision camera. From a nearby speaker comes a long, rattling trill. Cane toad’s rattling trill call. The bat briefly ...

The range of human hearing goes up to about 20 kilohertz, which is fine for our purposes, but is pretty poor compared to plenty of other animal species. Dogs famously can hear up to about 60 kHz, and ...

Even in loud settings with tons of different noises, we seem to have a knack for focusing in on the most important sounds, particularly sounds of danger. If we’re anything like bats, it’s because our ...

For two summers in a rugged corner of Idaho’s Pioneer Mountains, the roar of rushing white water filled the air. But where the loud sounds prevailed, only gentle streams flowed by. These phantom ...