An archive of tens of thousands of animal sounds has just gone online. The searchable Macaulay Library at the Cornell Lab of Ornithology boasts nearly 150,000 digital audio recordings, covering about ...

Most birds have distinct calls that tend to stay the same. It’s how birders can recognize a species without seeing it. But new research shows these tunes can change. Over the course of two decades, ...

Damien Pollard does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...