No sneak attacks here!🐙A Day Octopus slinks down into its den after sensing a predator around 🦈Cephalopods are considered to be extremely intelligent invertebrates, possessing 9 brains and the ability to learn, problem solve and use tools!🔧📘 . . . . . . #octopus #greatbarrierreef #shark #ladyelliotisland #masterreefguides #dayoctopus #greycarpetshark #predator #cephalopod #reef