Final answer:
The hoof wall is generally thinner at the heel, as it provides the necessary flexibility and shock absorption, compared to the thicker toe area which endures the most direct force.
Step-by-step explanation:
The hoof wall in horses is typically thinner at the heel compared to other parts of the hoof. The wall is responsible for bearing the weight of the horse and varies in thickness to provide the necessary support and flexibility. While the toe area can have a thicker wall to deal with the most direct force impact, the walls become thinner towards the heels for greater elasticity and shock absorption.