At which taxonomic rank is the Yorkie Bichon classified identically to a purebred Golden Retriever?
Answer
Species level
The text explicitly states that the Yorkie Bichon shares the same fundamental scientific standing as every other recognized dog breed at the species level, which is *Canis lupus familiaris*. While parent breeds like the Yorkshire Terrier and Bichon Frise have distinct genetic heritage influencing traits, this variation occurs *within* the *familiaris* subspecies. The higher taxonomic ranks, such as Kingdom, Phylum, Class, Order, and Genus, are shared universally among all domestic dogs. Therefore, the species designation remains the consistent marker uniting all dogs regardless of pedigree, distinguishing them from other members of the *Canis* genus, like coyotes, unless interbreeding leads to significant genetic divergence.

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