A weasel is a small, carnivorous mammal belonging to the family Mustelidae. They are known for their long, slender bodies and short legs, which help them move quickly and easily through their habitats. Weasels are found in various regions around the world and are often recognized by their brown fur, which can change to white in colder climates. Weasels primarily feed on small animals, such as mice and birds, using their agility and sharp teeth to catch prey. They are also known for their playful behavior and can be quite curious. Despite their small size, weasels are skilled hunters and play an important role in controlling rodent populations.