Mustela is a genus of mammals that includes weasels, otters, ferrets, and minks. These animals are known for their elongated bodies, short legs, and sharp claws. They are typically carnivorous and are found in various habitats, including forests, grasslands, and wetlands. The Mustela species are often characterized by their playful behavior and agility. They play important roles in their ecosystems as predators, helping to control populations of small mammals and other prey. Some species, like the European polecat, are also known for their distinctive scent, which they use for communication and defense.