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How genetics set the terrier apart from the golden retriever

Photo by Tara Kelly

I confess that I don’t really know why scientists are studying dog genomes to figure out why some  breeds are better at certain tasks than other breeds.

I thought that was the whole point of “breeding,” that you seek the genes that give you the dog who will best perform its essential duties (guarding the palace, for example, or herding sheep or sitting quietly in a handbag while its owner shops).

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