Weasels are small, carnivorous mammals belonging to the family Mustelidae. They have long, slender bodies, short legs, and sharp teeth, which make them effective hunters. Weasels are found in various habitats, including forests, grasslands, and even urban areas. They primarily feed on small animals like mice, birds, and rabbits. There are several species of weasels, with the most common being the stoat and the ermine. Weasels are known for their agility and speed, allowing them to chase down prey. Their fur can change color with the seasons, providing camouflage in different environments.