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How camouflage works

Research output: Contribution to journalArticle

Original languageEnglish
Article number20160341
Pages (from-to)20160341
Number of pages9
JournalPhilosophical Transactions B: Biological Sciences
Early online date22 May 2017
DateAccepted/In press - 11 Dec 2016
DateE-pub ahead of print - 22 May 2017
DatePublished (current) - 5 Jul 2017


For camouflage to succeed, an individual has to pass undetected, unrecognized or untargeted, and hence it is the processing of visual information that needs to be deceived. Camouflage is therefore an adaptation to the perception and cognitive mechanisms of another animal. Although this has been acknowledged for a long time, there has been no unitary account of the link between visual perception and camouflage. Viewing camouflage as a suite of adaptations to reduce the signal-to-noise ratio provides the necessary common framework. We review the main processes in visual perception and how animal camouflage exploits these. We connect the function of established camouflage mechanisms to the analysis of primitive features, edges, surfaces, characteristic features and objects (a standard hierarchy of processing in vision science). Compared to the commonly used research approach based on established camouflage mechanisms, we argue that our approach based on perceptual processes targeted by camouflage has several important benefits: specifically, it enables the formulation of more precise hypotheses and addresses questions that cannot even be identified when investigating camouflage only through the classic approach based on the patterns themselves. It also promotes a shift from the appearance to the mechanistic function of animal coloration.
This article is part of the themed issue ‘Animal coloration: production, perception, function and application’.

    Research areas

  • Defensive coloration, Signal to noise ratio, Crypsis, visual search, animal coloration

    Structured keywords

  • Cognitive Science
  • Visual Perception

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    Accepted author manuscript, 367 KB, PDF document


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