In a video on Reddit, a person’s hands can be seen lifting a dark-black squid from what appears to be a tank of water. Then, as the critter gets pulled out, it turns transparent. Upon being placed back into the tank, the squid turns deep black once again.
. This references the way that a cephalopod’s head connects to its arms.) Patterns and colors are produced by layers of cells stacked together called chromatophores, iridophores, and leucophores. It is the combination of certain cells operating at once that allows cephalopods to possess such a large array of color-changing abilities, explained Delbeek.
To better understand this complex process, Delbeek explained how chromatophores enable cephalopods to change colors and patterns. To change color, a cephalopod distorts the sacculus through muscular contraction, changing its translucency, reflectivity, or opacity. “This may explain why, as the neurons are activated one after another, the color change occurs in waves. Like chameleons, cephalopods use physiological color change for social interaction. They are also among the most skilled at background adaptation, having the ability to match both the color and the texture of their local environment with remarkable accuracy.”
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