The least weasel ("Mustela nivalis"), is the smallest member of the genus "Mustela". It is the smallest member of the family Mustelidae and order Carnivora. It is also called the little weasel, common weasel. It is native to Eurasia, North America and North Africa. It has been introduced to New Zealand, Malta, Crete, Bermuda, Madeira Island, the Azores, the Canary Islands, São Tomé, the Falkland Islands, Argentina and Chile. It is a least concern species.