But the fur industry is profit-driven, and prohibition is a political hot potato. In North America, the largest producer of high-quality wild furs, the proportion is closer to 50%. Smaller quantities of wild furs also come from Russia (sable), Europe (fox), South America (fox, nutria) and other regions. To preserve the pelts, animals on fur farms are killed by inhumane methods, such as gassing and head-to-tail electrocution. An additional source of fur for the apparel industry comes from street-harvested cats and dogs in some countries, their fur being dyed and patterned to look like it came from a wild animal.