What two breeds make a mustang?

Mustangs are not a result of mixing two specific breeds. They are actually feral horses, meaning they are descended from domestic horses that were brought to the Americas by European explorers and settlers.

These horses escaped or were intentionally released and over time, they established themselves as wild herds.

The genetic makeup of a mustang is therefore a mix of various breeds brought over from Europe, including:

* Spanish horses: These were the dominant breed in the early days of colonization, and they heavily influenced the mustang's physical characteristics.

* English Thoroughbreds: Brought later, they contributed to the mustang's speed and agility.

* Other European breeds: Including Arabian, Barb, and Hackney horses, all contributing to the diversity of the modern mustang.

So, while a mustang is a wild horse, it's not a specific breed, but rather a mixed breed of horses descended from various domestic breeds.