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The article focuses on several facts related to dolphins and language shared by them for communication. It presents views of Kathleen Dudzinski, director of the Dolphin Communication Project, on using high-technology gear to record and analyze nuance of their language and spending most of time underwater. It also mentions dolphins squawk, whistle, click, and squeak starting from their birth.

The article reports on a study by biologists at the U.S. National Oceanic and Atmospheric Administration suggesting that dolphins change the frequency, amplitude, and duration of their vocalizations in order to be heard over the noise of boats and other man-made disturbances. According to the study, dolphins needed to take in additional oxygen and burn additional calories in order to produce louder sounds.