In this video from QUED Science's Deep Look, we get an up-close look at how and why cephalopods' skin changes colors. The video is presented in 4K resolution (crank it up!) and features closeups of squid, octopus, and cuttlefish skin working in the wild—plus lab research seeking to understand how it works.

If you've ever wished you could camouflage yourself in a flash, envy these sea creatures: