Claws can help an animal scurry up a tree away from a predator. They can also help a mammal to dig deep below the earth in order to create a burrow for young, or an elaborate tunnel system for an entire family group, as in prairie dogs. Hooves Like claws, hooves are also made of keratin and are found on mammals such as pigs, deer, antelope, and horses. Hooves are usually found on herbivores or prey animals. They serve a very special purpose for most members of this group by offering protection from the impact of their feet striking the ground when running.
Hoofed animals rely on being able to flee rapidly to avoid predators.
Because more force is put on front hooves when the animal runs, they are often larger and can withstand greater force than the back hooves. Many mammals have hooves that are cloven with two parts. This structure allows the animal to walk easily in all sorts of habitats, from hard ground to soft, sandy soil . Hooves are also used for grooming, to dig for food, and for defense.