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Cephalopods like squid and octopuses have color-changing cells called chromatophores, which enable them to blend into their surroundings to hide from predators and prey. Chromatophores can be triggered by electrical signals, so watch what happens when the folks at Backyard Brains play music through a squid fin. The song selection is Cypress Hill’s 1993 classic track, Insane in the Brain.

“Insane in the membrane…”


Laura Cochrane

Laura Cochrane

I’m a DIY editor at Instructables and I used to be an editor at MAKE and CRAFT. I like hiking, biking, rock climbing, and etymology.