Animal fur is a type of hair that covers the bodies of many mammals. It serves several important functions, including insulation to keep animals warm, protection from the elements, and camouflage to help them blend into their environments. Different species have varying types of fur, which can be short, long, thick, or thin, depending on their habitat and lifestyle. Fur can also vary in color and texture, often helping animals communicate or attract mates. For example, the fur of Arctic foxes changes color with the seasons, providing effective camouflage in both winter and summer. Additionally, fur can be used by humans for clothing and other products, although this raises ethical concerns regarding animal welfare.