A baby horse is commonly referred to as a "foal." Foals are usually born in the spring and can stand and walk shortly after birth, which is essential for their survival in the wild. They nurse from their mothers for several months but begin to graze on grass and forage early on. Male foals are called colts, while female foals are known as fillies. Typically, foals grow quickly and reach maturity between the ages of one and four, depending on the breed. Proper care and socialization during this stage are important for their future training and performance.