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Abstract

Examines in Marine Biology & Oceanography

What Would it Mean if White Sharks, Carcharodon Carcharias, Possessed Disconjugate Optokinetic Stimulation?

  • Open or CloseErich K Ritter1,2* and Andreas Dellios3

    1Department of Mathematics and Statistics, USA

    2Shark Research Institute, USA

    3Department of Marine Biology, Shark School, USA

    *Corresponding author:Erich Ritter, Department of Mathematics and Statistics, USA

Submission: July 06, 2020; Published: July 31, 2020

DOI: 10.31031/EIMBO.2020.03.000570

ISSN : 2578-031X
Volume3 Issue4

Abstract

Disconjugate eye movements are a feature of some animal species, but it is unknown whether white sharks, Carcharodon carcharias, possess independent eye moments, as well. Here, the question of what it could mean if they exhibited this ability is discussed. Video evidence shows the possibility of independent eye movements with a white shark looking at two distinct targets aimed at them consecutively. Different interpretations of the videos core frames are discussed with disconjugate optokinetic stimulation as the most highly advanced possible explanation of this observation. Such an ability would enable a white shark to scan its entire visual field and confer an advantage in terms of being able to observe two prospective food sources on either side of its head, allowing it to decide which target represents the more likely success. Such a mechanism could help to explain the high success rate of white sharks when hunting down very agile pinnipeds.

Keywords:Behavior; Disconjugate optokinesis; Eye movement; Hunting; White shark

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