Wells, Martin (1983). "Cephalopods do it differently". New Scientist. Vol.100, no.1382. pp.333–334. ISSN 0262-4079. You can generally find Giant Pacific Octopuses in as shallow water as a tidal pool and down to such depths of 5000 feet (1,524 m). Their ideal habitat is in and around areas with a soft substrate, like mud or sand. They are often found in groups near kelp fields for large feeds. Interestingly, even though they have such a wide-ranging habitat, they are ectothermic, with a metabolism that depends on water temperature. 9. Seven-Arm Octopus (Haliphron atlanticus) Along with other bobtail squid species, the Atlantic bobtail is a great illustration of the close relationship between octopus and squid. At first glance, it looks a lot like a small, shiny octopus! Its habitat stretches over part of the Atlantic Ocean, but there is a record of one single Atlantic bobtail being caught in the Mediterranean Sea. 3. Greater Blue-Ringed Octopus

Carefoot, Thomas. "Octopuses and Relatives: Prey handling and drilling". A Snail's Odyssey. Archived from the original on 6 June 2017 . Retrieved 21 April 2017. Yekutieli, Y.; Sagiv-Zohar, R.; Aharonov, R.; Engel, Y.; Hochner, B.; Flash, T. (2005). "Dynamic model of the octopus arm. I. Biomechanics of the octopus reaching movement". Journal of Neurophysiology. 94 (2): 1443–1458. doi: 10.1152/jn.00684.2004. PMID 15829594. S2CID 14711055. Dumbo Octopuses live on the ocean floor anywhere from 9,800 (2,987 m) to 13,000 feet (3,962.4 m) deep, making them the deepest living of all the known octopus species. They have the typical fins on their mantle that make them look like they have huge ears, similar to the elephant in Disney’s 1941 film. 11. Coconut Octopus (Amphioctopus marginatus) Plug in your OHM at the wall using the plug and USB cable - you'll need to keep it plugged in even when you've set it up. It needs to be as close to your electricity meter as possible and within WiFi range. You might wonder how this colorful creature came to be called the “coconut octopus.” That’s because it gathers coconut shells and some types of seashells for shelter. Since it has the capability to create a kind of “fortress” for protection, it’s one of the relatively few members of the animal kingdom capable of using tools. The coconut octopus is also one of only two octopus species that will sometimes walk on two legs. Experts think that walking this way may make it look like a floating coconut, effectively camouflaging it. 2. Atlantic Bobtail SquidCastellanos-Martínez, Sheila; Gestal, Camino (2013). "Pathogens and immune response of cephalopods". Journal of Experimental Marine Biology and Ecology. 447: 14–22. doi: 10.1016/j.jembe.2013.02.007. The Southern Keeled Octopus is usually cream to light brown. They get their name from the skin-keel formed over the edge of their mantle. These octopuses primarily feed on crustaceans. When they are irritated, the spheres around their eyes get dark, and their webbing flares up. 15. California Two-Spot (Octopus bimaculoides) Octopuses can create distracting patterns with waves of dark coloration across the body, a display known as the "passing cloud". Muscles in the skin change the texture of the mantle to achieve greater camouflage. In some species, the mantle can take on the spiky appearance of algae; in others, skin anatomy is limited to relatively uniform shades of one colour with limited skin texture. Octopuses that are diurnal and live in shallow water have evolved more complex skin than their nocturnal and deep-sea counterparts. [107]

Liscovitch-Brauer, N.; Alon, S.; Porath, H. T.; Elstein, B.; Unger, R.; Ziv, T.; Admon, A.; Levanon, E. Y.; Rosenthal, J. J. C.; Eisenberg, E. (2017). "Trade-off between transcriptome plasticity and genome evolution in cephalopods". Cell. 169 (2): 191–202. doi: 10.1016/j.cell.2017.03.025. PMC 5499236. PMID 28388405. Chambers Reference Online". Chambers 21st Century Dictionary. Chambers Harrap. 1996. Archived from the original on 24 November 2007 . Retrieved 19 October 2007. {{ cite web}}: CS1 maint: unfit URL ( link) a b Stewart, Doug (1997). "Armed but not dangerous: Is the octopus really the invertebrate intellect of the sea". National Wildlife. 35 (2).Notes: I used a non-toxic sharpie to draw on the octopus faces, as the skin will be discarded and not actually eaten. You can also use a food safe marker if you prefer.