On a calm February day off the coast of Maui, whale researcher Jim Darling cut the engine on his boat, dipped an underwater microphone into the ocean and caught a sound he’d never heard before in 30 ...

Patrick Hart studies birds so intently on Hawaii Island, he’s nearly becoming one. Over the phone, Hart bursts into a bird song midconversation, mimicking the rhythmic and guttural noise of the uau ...

A male akepa are known for their bright orange hue and are often seen on the windward side of Hawaii island. Sound becomes data, Hart said, which can consequently be used to estimate the actual ...