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Fine, M.L., Winn, H.E. and Olla, B.L. (1977) Communication in Fishes. In: Sebeok, T.A., Ed., How Animals Communicate, Indiana University Press, Bloomington, 472-518.

has been cited by the following article:

• TITLE: First Recorded Account of a White Shark Agonistic Pectoral Fin Depression Behavior at Guadalupe Island, Mexico

  AUTHORS: Andrew Currie, Ralph S. Collier

  KEYWORDS: White Shark, Ocean, Agonistic Behavior, Pectoral Fin Depression, Cage Diving, Guadalupe Island

  JOURNAL NAME: Open Journal of Animal Sciences, Vol.13 No.3, June 12, 2023

  ABSTRACT: An agonistic display by a white shark was observed and photographed during a cage dive at Guadalupe Island in November 2015. Exhibiting exaggerated pectoral fin depression, agonistic behaviors have been previously observed and described in several shark species. This account may be the first record of a white shark in close proximity to a caged diver, exhibiting strong pectoral fin depression significantly dipped, in the mid-agonistic display. Such displays should be considered as aggressive and potentially life-threatening by those using the ocean for recreational or professional purposes.