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

8.4M views · 10K reactions | See the reef whilst staying dry 視 Have you ever heard of a glass bottom boat? They are the perfect way of experiencing the Great Barrier Reef without even getting into the water, and with Master Reef Guides like Dustin at the bow of the boat he will ensure you will not only have a fun time, but walk away learning a thing or two about what you just saw.  Reef Magic | Master Reef Guides | Facebook