Which breed, described as the 'King of Terriers,' shares ancestry with the Welsh Terrier?
Answer
Airedale Terrier
The Airedale Terrier shares a very close physical resemblance to the Welsh Terrier, often being characterized as a miniature version of the larger breed. Both breeds trace a shared ancestral line back to the now-extinct Old English Black and Tan Terrier. The Airedale is specifically nicknamed the 'King of Terriers,' setting it apart from the Welsh Terrier primarily in terms of substantial size difference, though both remain firmly within the *Canis lupus familiaris* subspecies.

Related Questions
What specific subspecies designation confirms the Welsh Terrier's status within Canis lupus?Which biological order reflects the Welsh Terrier's evolutionary history rooted in meat-eating?To which specific Group and Section does the Fédération Cynologique Internationale (FCI) assign the Welsh Terrier?What specific grooming process is required for the Welsh Terrier's dense, hard, wiry outer coat?What key trait defines the Welsh Terrier's position in the Class Mammalia, besides possessing hair or fur?Which breed, described as the 'King of Terriers,' shares ancestry with the Welsh Terrier?What functional outcome of the *Carnivora* lineage explains why Welsh Terriers love to dig and chase small running animals?To what Family grouping does the Welsh Terrier belong alongside wolves, foxes, and jackals?What was the Welsh Terrier developed to hunt underground in the mountainous regions of Wales?Which Kingdom classification indicates the Welsh Terrier is a multicellular, eukaryotic organism?