New research reveals dolphins struggle to communicate and work together as noise pollution increases.
Media caption,"If groups of animals in the wild are less efficient at foraging cooperatively, then this will negatively impact individual health, which ultimately impacts population health," said co-author Stephanie King, associate professor at the University of Bristol.
As a result, cetaceans - whales, dolphins, porpoises - have developed a complex range of sounds to "talk" to each other. Pernille Mayer Sørenson, a PhD candidate at Bristol University who led the research team which included the Dolphin Research Centre and St Andrews University, said: "We knew from previous studies that noise pollution impacts animals, but from this study what we do for the first time is look at how noise impacts how animals work together.
Each dolphin was fitted with a temporary sound-and-movement tag which sits behind their blowhole and measures their behaviour and sounds.
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