Bats navigate cluttered environments by interpreting patterns in echo changes—known as acoustic flow velocity—rather than analyzing individual echoes. Experiments show bats adjust their speed based on ...

Most library-goers don’t get to enjoy a bit of nature while pursuing books; not so for Portugal’s Joanine Library. A colony of bats has called the library home since the 18th century. The fascinating ...

But a new study sheds light on this question. It reveals that bats don’t just listen to echoes the way we once thought, but also use something called acoustic flow velocity to judge their speed and ...