Must is a short legged omnivore in the weasel family, including otter, mink, weasel and Wolverine. They belong to the canine suborder of carnivorous mammals. 11 species are divided into three subfamilies: Melinae (Eurasia m), mellivorinae (honey badge or wool tax) and taxideinae (America badge). Asian stinky badges of mydaus were previously included in Melinae (hence Mustelidae), but recent genetic evidence suggests that they are actually members of the skunk family, which is classified as the family of mephitidae.

They include Arctonyx, Meles, Mellivora, Melogale and Taxidea. The con of the ger mandible is connected to the long cavity of its skull, which can resist the dislocation of the mandible and increase its grip. However, the con of the ger mandible limits the movement of the mandible to hinged opening or closing, or left and right sliding, but it can not limit the torsional movement of the mandible in most mammals.

Ger's body is short and wide, and his legs are short. Their heads are long and thin, like weasels, and their ears are small. Their tail lengths vary by species. Badge's tail is short, while ferret badge's tail is 46-51 cm (18-20 inches) long, depending on age. Their black faces have obvious white stripes, their gray bodies have light stripes from the beginning to the end, and their dark legs have light abdomen. They are about 90 centimeters (35 inches) long, including the tail.

Badge in Europe is one of the largest R's. American badge, pig badge and honey badge are usually smaller and lighter. The stinky badge is still small, while the ferret badge is the smallest. They weigh about 9-11 kg (20-24 lbs), and some Eurasian badges weigh about 18 kg (40 lbs).