Their fur is also oily, which helps to trap in some of  the heat and waterproof the fox.    Arctic foxes also have a compact body with short legs, short ears,  dense fur, and thickly haired foot pads. Therefore the less surface  area is exposed to the cold, less heat escapes the body. These not  only help to insulate against the cold, but provide grip on the ice  as well. This is so that they are still camouflaged when the  snow melts. They need to be camouflaged so prey and predators  cannot see them as well.   It has the warmest fur of any mammal which is even warmer than the  polar bear. Arctic Cod. The Arctic cod is a key species in the Arctic marine ecosystem. It’s a critical link in the food web between the zooplankton it feeds on and the other Arctic fishes, seabirds, seals and whales that eat it.  In the polar waters of northern Canada, arctic cod spawn each year in the late fall and early winter. Amazingly, up to 10% of a male's body weight consists of gonads! At spawning time, females produce from 9000 to 21,000 eggs that are 1.5 mm in diameter. However, little is known about its mating behaviour. Although this species has a similar appearance to other codfishes, it is easily recognized by its slender body, deeply forked tail, projecting mouth, and small chin barbels. It is plainly coloured, brownish, spotted above, and silvery on the belly. In 1974, however, Holeton questioned whether metabolic cold adaptation in polar fish was a fact or an artefact. He measured the oxygen consumption of several Arctic fish species to test the validity of metabolic cold adaptation and evaluated the experimental methods previously used. Recent experiments on arctic and Antarctic fish, however, do not show elevated resting aerobic oxygen consumption values, or standard metabolic rate, and hence it is concluded that that metabolic cold adaptation in the traditional sense is Abstract. Whether metabolic cold adaptation in polar fish, based on measurements of aerobic standard metabolic rate, is a fact or an artefact has been a dispute since Holeton asked the question in 1974. Recent experiments on arctic and Antarctic fish, however, do not show elevated resting aerobic oxygen consumption values, or standard metabolic rate, and hence it is concluded that that metabolic cold adaptation in the traditional sense is an artefact. Arctic cod, Boreogadus saida. The arctic cod is a slender fish that grows to a maximum length of 30 cm, with populations in the North having a larger body size than those in the South. For example, off the coast of northern Labrador, the arctic cod is typically 25 to 30 cm, while individuals off eastern Newfoundland rarely exceed 18 cm in length. Although this species has a similar appearance to other codfishes, it is easily recognized by its slender body, deeply forked tail, projecting mouth, and small chin barbels. It is plainly coloured, brownish, spotted above, and silvery on the belly. The cod is a cold-water species that is distributed on the continental shelves and in the coastal waters of the northern North Atlantic. The range extends from the Bay of Biscay and the Baltic Sea to the Barents Sea, around Iceland, along the southern Greenland and along Newfoundland to North Carolina in North America.  When a fish as large as a cod is prepared, you get the same kinds  of fillets that you would see from a trout (for example), but much  much bigger! Because the fillets are s … o large, they tend to be cut  into smaller units. The word cod is used as singular and plural; it is a type of fish. Singular: Jim came home from the fishing trip carrying a beautiful cod. Plural: Jim came home from the f … ishing trip carrying a box full of cod. Dissostichus mawsoni, the Antarctic toothfish, is a species of cod icefish native to the Southern Ocean. It is often mistakenly referred to as an Antarctic cod, consistent with the misnaming of other notothenioid Antarctic fish as rock cods. 
http://www.answers.com/Q/What_are_some_adaptations_of_the_Arctic_Cod http://www.vanaqua.org/learn/online-exhibits/canadas-arctic/animals http://www.arctic.uoguelph.ca/cpl/organisms/fish/marine/gadidae/arctic.htm http://www.sciencedirect.com/science/article/pii/S109564330200048X http://www.sciencedirect.com/science/article/pii/S109564330200048X http://www.arctic.uoguelph.ca/cpl/organisms/fish/marine/gadidae/arctic.htm http://www.ucd.ie/codtrace/codbio.htm http://www.answers.com/Q/What_are_the_adaptations_of_a_cod https://en.wikipedia.org/wiki/Antarctic_toothfish
what is arctic cod adaptations