A child of a horse is called a foal. Foals are typically born after a gestation period of about 11 months and can stand and walk shortly after birth. They are often described as cute and lively, exhibiting playful behavior as they grow. Foals are weaned from their mothers after a few months and will continue to grow into horses over the next few years. For male foals, the term "colt" is used, while female foals are referred to as "fillies." The bond between a foal and its mother is crucial for its development and learning.