The diagrams below show the development of the horse over a period of 40 million years. The evolution of the horse, with particular emphasis on the changing foot structure. Summarize the information by selecting and reporting the main features and make comparisons where relevant.

The provided illustrations describe the evolutionary progression of the horse spanning a period of 40 million years, with focus on the alternations in its limb structure. Overall, it is clear that horses have increased sharply in terms of size and muzzle while also decreasing the number of toes and finally evolving into a single hoof. […]