Mustelids and martens (Mustelidae) are the most numerous family of predatory mammals, including small and medium-sized animals. They have a slender body and short legs and are perfectly adapted to a predatory lifestyle in various environments. The mustelid family includes about 60 species, including weasels, martens, otters, minks, and badgers. They are closely related to pandas, skunks, and raccoons. Mustelids are very efficient and persistent hunters, some are bred for fur, and others are kept as pets.