= Camouflage
<Camouflage> is concealment that reduces the chance that an observer detects or recognizes an <organism>. <Crypsis> can work through resemblance to the background; other patterns can disrupt the apparent outline of a body. Their effectiveness depends on the observer's <sensory system>, viewing conditions and <animal behaviour>.
A useful test measures detection or attack by the relevant <predator> against several backgrounds. A colour match judged by a <human> does not establish the same match for an observer with different <colour vision>. <Camouflage> and resemblance to a defended model in <Batesian mimicry> therefore require different explanations.
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