QotW - 16.06.28 - If octopuses are colour blind, how can they camoflage?

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Offline thedoc

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I've read that octopus are colour blind. If so, how can they so reliably match their background colours when they camouflage themselves? Also, they make coloured displays to each other, like red for aggression/anger.
Asked by Android Neox


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« Last Edit: 28/06/2016 15:28:21 by _system »