How does a horse's skeleton help it to move?

A horse's skeleton is designed for efficiency and speed, featuring a lightweight structure with long, strong bones that enhance stride length. The flexible spine allows for a greater range of motion, while the powerful limbs and well-developed joints provide the strength needed for propulsion. Additionally, the horse's unique hoof structure acts as a shock absorber, aiding in smooth movement across various terrains. Together, these skeletal adaptations enable horses to run swiftly and maintain stamina over long distances.