Certain weasels are small mammals that belong to the Mustelidae family. ERMINES and stoats are two species of weasel that are found in various parts of the world. ERMINES have a white coat with a black tip on their tail, while stoats have a brown coat with a white tip on their tail. Both species are known for their agility and cunning, and they are often seen as pests due to their ability to hunt and kill small animals. They are also known for their ability to adapt to different environments.