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  1. Three Dog Eves: Canine diaspora from East Asia to Americas

    Genetic studies have moved the origins of dog domestication from the Middle East to East Asia and suggest that the first people to venture into the Americas brought their dogs with them.

    By Susan Milius
  2. Health & Medicine

    Virus Stopper: Vaccine could prevent most cervical cancers

    A vaccine fashioned from a protein found on human papillomavirus-16 protects women from long-term viral infections that can lead to cervical cancer.

    By Nathan Seppa
  3. Earth

    Dioxin cuts the chance of fathering a boy

    More girls than boys are fathered by men who sustained a relatively high environmental exposure to dioxin from a 1976 factory explosion in Italy.