In tropical forests, much of the biodiversity can be heard before it is seen. Birds call, insects buzz and frogs croak, creating complex soundscapes that reflect the presence of different species.

Scientists discovered that scissor-tailed nightjars create strange courtship sounds by snapping the bones in their wings ...

Migrating birds shown with spectrograms of the calls they use in flight, which researchers captured via acoustic monitoring complemented their radar data on migration patterns. Every year, billions of ...