Structural color has been a quite famous topic on this blog; which is justified as it is a feature that assures communication within many species and can be decisive in reproductive success. When it comes to defense, strategies involving pigmentation and bioluminescence to alert and dazzle potential predators are well documented. But did you know some organisms use structural color to simply disappear? Indeed, invisibility cloaks are not just a Harry Potter fantasy. Check out the following video:

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