Ielts Academic Writing Task 1 Diagram Horse evolution

The diagrams below show the development of the horse over a period of 40 million years. Summarize the information by selecting and reporting the main features, and make comparisons where relevant.

Ielts Academic Writing Task 1 Diagram

The given diagrams elucidate the evolution process of modern horse – from Eohippus to the horse we see today.

On an overall, the development of modern horse took forty million years and four stages. The first diagram depicts eohippus that appeared forty million years ago, it was smaller in size, and had four fingers foot. In the next ten million years, eohippus transformed into Mesohippus, which was slightly bigger than its predecessor; had short hair on the  back of its neck. The noticeable change occurred was in its foot structure where four fingers were replaced by three, and the middle finger had a bulb.

The Merychippus appeared 15 million ago, which was again bigger and had thicker hair and tail, with a larger foot, the structure of toes also expanded in size.

The species of modern horse is the largest, with a thick coat of hair and a tail. The anatomy of foot has witnessed drastic changes, as toes have given way to a hoof, a complex foot structure.

The final stage in the evolution of the horse is that of a modern horse. This species is largest in its lineage, which has a thick  coat of hair on the back of its neck and a thick and long tail.