Fouda L, Wingfield JE, Fandel AD, mfl. Dolphins simplify their vocal calls in response to increased ambient noise. Biology Letters. 2018;14(10):20180484. Available at: http://rsbl.royalsocietypublishing.org/lookup/doi/10.1098/rsbl.2018.0484https://syndication.highwire.org/content/doi/10.1098/rsbl.2018.0484.