The term 'weasel relatives' refers to animals that are related to weasels, such as MINK. MINK (4 letters) is a small, semi-aquatic mammal that is native to North America and Europe. It has a long, slender body and a glossy coat of fur that can range in color from dark brown to black. MINK are carnivorous and feed on small rodents, fish, and other aquatic creatures. They are also known for their playful behavior and intelligence.