How do octopus change the texture of their skin to match their surroundings?



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    Octopuses have “projections in the skin called papillae”. These allow octopuses and other cephalopods to change the the texture of their skin. “For example, some benthic octopuses will acquire a smooth, mottled appearance to blend in with sandy oceans bottoms or a bumpy texture to match the surface of a coral reef.” (

    According the study cited below, scuttlefish (which are also cephalopods) use visual cues rather than touch to change their papillae.


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