447K views · 4.2K reactions | As the common reef #octopus (Octopus cyanea) moves across the coral reef, it uses chromatophores to change its coloring and appearance to match the substrate beneath. These color changes are sometimes created to mimic a dark shadow passing across the surface — in hopes that a crab may let its guard down and become a snack.  #ocean #science | Science Channel | Facebook

95K views | Reel by Channel 4 News