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  1. 19421

    Your article failed to include in the list of oldest dogs the Shiba Inu. This is the most popular dog in Japan today, and many of its qualities make it a much better pet than the other dogs listed in your “oldest breeds” category. Deborah Katz HuntMadison, Wis. The genetic analysis included the Shiba Inu, […]

    By Science News

  2. Breeds Apart: Purebred dogs defined by DNA differences

    The most thorough DNA analysis yet of purebred dogs suggests that canine breeds can also be discerned genetically with great accuracy.

    By John Travis
  3. Plants

    Wind Highways: Mosses, lichens travel along aerial paths

    Invisible freeways of wind may account for the similarity of plant species on islands that lie thousands of kilometers apart.