Brown fur is a type of fur that can be found on a variety of animals. Otter, SABLE, NUTRIA, STOAT, and stoats are all animals that have brown fur. Otters have five letters in their name and are semi-aquatic mammals that live in rivers, lakes, and oceans. Sables also have five letters in their name and are small mammals that live in northern forests. NUTRIA have six letters in their name and are large rodents that live in wetlands. Stoats have five letters in their name and are small mammals that live in grasslands and forests. Stoats also have six letters in their name and are related to weasels.