Which species of livestock is predominantly raised for wool production?

Sheep are predominantly raised for wool production due to their unique ability to grow a thick coat of wool fibers, which can be harvested and processed for various textiles. Sheep breeds, such as Merino and Rambouillet, are specifically bred for their wool quality, making them the primary livestock associated with the wool industry. The sheep's fleece serves as natural insulation and can vary in texture and diameter, leading to a range of wool products suited for clothing, blankets, and other textile needs.

While other livestock, such as goats, can produce fibers like cashmere and mohair, they are not primarily raised for wool in the same way sheep are. Cattle and pigs, on the other hand, are raised for meat, milk, or other by-products and do not produce wool; therefore, they are not considered livestock for wool production.