Answer:
Horses slowly developed over time.
Explanation:
The diagram shows the evolution of horses - how they slowly developed over time. Just like humans and other species, they didn't appear suddenly. They had to go through many stages of development, from the existence of the hyracotherium, their extinct ancestor, to today.
The rest of the options are incorrect as:
- As previously mentioned, new species don't just suddenly appear.
- There is nothing about embryological development in the given diagram.
- There is nothing about other hooved animals in the given diagram.
