What term is used for a horse that is one year old?

The term "yearling" specifically refers to a horse that is one year old. This classification applies to horses in the year following their birth, as they are transitioning from a foal to a more mature animal. During this period, yearlings undergo significant growth and development, preparing them for the next stages of training and life.

In contrast to a yearling, a filly refers to a young female horse, usually under four years old, while a colt is a young male horse that is typically under four years as well. The term mare describes a fully mature female horse, generally aged four years or older. Understanding these terms and their specific age classifications is essential in the equine industry, as it influences breeding, training, and showing practices.