One of the primary reasons why the hooves of domesticated horses do not naturally wear down and require regular trimming is due to the use of metal horseshoes. These shoes are essential because domesticated horses engage in activities like pulling loads or trotting on hard, abrasive man-made surfaces such as roads designed for vehicles, which provide traction. Without the shoes, their hooves would experience excessive wear, leading to lameness and an inability to perform their work.

The growth rate of horse hooves is naturally adapted to match the wear they would experience in their native ecosystems. We can observe this phenomenon in wild horses, such as zebras, as well as other wild breeds and species of horses, as well as other hoofed animals. Their hooves are designed to maintain a delicate balance between growth and wear in their natural environments. However, domesticated horses’ hooves, due to their different working conditions and surfaces, require the assistance of horseshoes to prevent excessive wear and maintain their overall health and functionality.