![]() InkĮach octopus is equipped with an ink sack with a gland that produces the ink. Some species have developed unique techniques as, for example, the Mimic Octopus which is famous for its ability to impersonate other animals, or the Blue-Ringed Octopus which, when feeling threatened by an enemy, can make its blue rings reflect light and make them appear as shining. The octopus can also imitate spikes, bumps, and ridges in order to appear more intimidating to its attackers. By contracting and expanding this sac, the octopus can change the shade of its color, as well as its intensity. Color alteration is achieved thanks to the cells known as chromatophores, which are located under their skins and contain a sac full of colorful pigments ((black, brown, orange, red, or yellow). They can alter both their color and texture to blend in with their surrounding environment. Octopuses are many times compared to the chameleon thanks to their master camouflaging techniques. Now it is finally time for a nap! Camouflage Otherwise, it can also cover the entrance to his hideout with more rocks and materials hoping that the den will remain undiscovered by its predators. Once settled in the den, the octopus protects the entrance: it places an arm with its suckers facing outwards and an eye above the arm to surveil any action. They can construct their dens themselves using small rocks or any other handy material they might find. Octopuses choose small holes or narrow openings to hide, often not much larger than their size. The hiding place of the octopus, in other words, its den is the first level of protection which keeps the octopus safe from its predators. Without a shell for protection, the octopus needed to develop many effective techniques to defend its life. ![]() For this reason, the octopus is faced with many dangerous predators during its lifetime. As much as we (and all octopus enthusiasts) do not like to think of an octopus as food, the fact is that they do offer a meal full of useful protein. Our beloved eight-armed invertebrates are associated in most people’s minds with a lovely, tasty, and healthy meal.
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