Animal genetic resources for food and agriculture crop and livestock species in the early neolithic time period changed our human evolution and lifestyles. This ability to control food production led to major demographic, technological, political and military changes. Consecutively, thousands of years of natural and human selection, genetic drift, inbreeding, and crossbreeding have contributed to the diversification of animal genetic resources and increased the variety of environments and production systems that livestock keeping takes place. Relatively few species have been domesticated; out of the world's 148 non-carnivorous species weighing more than 45 kg, only 15 have been successfully domesticated. The proportion of domesticated birds used for food
Country food country foods in the NWT's area include mammals and birds (caribou, moose, ducks, geese, seals, hare, grouse, ptarmigan), fish (lake trout, char, inconnu (coney), whitefish, pike, burbot) and berries (blueberries, cranberries, blackberries, cloudberries). In the eastern Canadian Arctic, Inuit consume a diet of foods that are fished, hunted, and gathered locally. This may include caribou, walrus, ringed seal, bearded seal, beluga whale, polar bear, berries, and fireweed. The cultural value attached to certain game species, and certain parts, varies. For example, in the James Bay region, a 1982 study found that beluga whale meat was principally used as dog food,