Mustelids, or the Mustelidae, are a diverse family of carnivorous mammals that include weasels, otters, badgers, and wolverines, among others. The family has a wide distribution, with species present in Asia, Europe, North America, and South America. The Mustelidae family was first identified and named by Carl Linnaeus, and later, Gotthelf Fischer von Waldheim contributed to the classification. The Mustelidae family is ancient, with origins tracing back to the Oligocene epoch, and they have successfully adapted to a variety of habitats, including aquatic, semi-aquatic, and terrestrial environments. This adaptability has allowed them to become one of the most widespread families of carnivores. Their diverse diets include small animals, fish, and insects, and some species have even been known to feed on birds and fruit. The Mustelidae family is characterized by their typically small size, short legs, and long, slender bodies. They possess non-retractable claws and typically have five toes on each foot, with strong claws for digging and burrowing. Some species have partially webbed feet, an adaptation to their aquatic lifestyle. Mustelids also have excellent senses of smell and hearing, which aid in hunting and navigating their environment. With a diverse range of behaviors, some mustelids are solitary, while others live in pairs or family groups, and they generally mark their territory with scent glands.