Hair and fur sheds and then grows back in a continuous pattern. Hair, skin, and fur have many other purposes besides protection from cold and heat stress. Fur provides protection from the environment, can camouflage from them from predators, gives animals their general shape, and in some cases provide warning signals. These warning signals, known as aposomatic coloring can be found for example on skunks to provide a warning from their scent. Animals who have no color are known as albino, and animals whom are totally pigmented are known to have melanism.
Most mammals have some type of claw or nail.
A claw or nail has three parts. The top hard layer is called the ungus. The living part is called the subungus, and the soft part is called the pad. Some mammals have what is called headgear, this headgear, is what we know as horns and antlers. Horns can be found in species like sheep, goats, bison , and cattle.