Cod are saltwater fish that live best in deep, arctic- temperature water in order to grow, reproduce, and survive. It does not seem happenstance that the words "cod" and "cold" are indeed quite similar.
Cod belong to the Gadidae family along with haddock and monkfish (the Latin word gadus means "cod"). There are a few varieties of cod that are typically consumed in different parts of the world, such as lingcod, saithe, and zarbo cod. However, North Atlantic cod (Gadus morhua) is the best-known type.Cod has a light, almost white color and a noble, buttery taste. It is usually sold as fillets up to 12 inches long and 4 inches wide.