What is the significance of the extra thick tail of the west highland terrier?

The extra thick tail of the West Highland Terrier, often referred to as the "Westie," serves multiple purposes. It was originally bred for hunting vermin in the Scottish Highlands, and the thick tail allowed owners to easily locate and pull their dogs out of burrows. Additionally, the tail's robustness contributes to the dog's overall balance and agility, essential traits for a working terrier. The tail also plays a role in communication, helping express the dog's emotions and intentions.