Minks' cousins are otters, which are semi-aquatic mammals that belong to the Mustelidae family. They have long, slim bodies and short legs, and are well-known for their playful nature and swimming abilities. Otters are found in many parts of the world, including North America, Europe, Asia, and Africa. They live in both freshwater and saltwater habitats, and feed on fish, crustaceans, and other aquatic animals.