Several ferrets with different colors.
Ferrets (Mustela putorius furo) are domestic animals. They are the domestic form of the European polecat. They are in the weasel genus of the family Mustelidae.
Ferrets have an average length of 20 inches (51 cm) including a 5-inch (13 cm) tail, weigh about Lua error in Module:Convert at line 1850: attempt to index local 'en_value' (a nil value).. They live for about 7–10 years. Males are larger than females. They are sociable animals, and are usually kept in groups of two or more.