It's not only humans that like to eat with friends. Lots of animals ask their pals along to meals. But an invitation from a dolphin, warns Sara Cross, may not be as sociable as it seems.
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References
Vanik, V.M. 267, 923 - 927 2000.
Marten, K., Norris, K.S., Moore, P.W.B. & Englund, K.A. Animal Sonar: Processes and Performance edited by Nachtigall, P. Plenum, N.Y. 567 - 579
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Cross, S. Singing for supper. Nature (2000). https://doi.org/10.1038/news000601-1
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DOI: https://doi.org/10.1038/news000601-1
