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  1. 19554

    This article features yet another study making summary statements on what is obviously inadequate sampling. Most of the language families from California to Alaska have not been represented in any DNA studies. Those of us who study cultures on the northwest coast of America see the enormous complexities of cultures in this area. Outdated and […]

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  2. Anthropology

    Founding Families: New World was settled by small tribe

    A new genetic analysis indicates that only about 200 to 300 people crossed the ice age land bridge from Asia to become the founding population of North America.

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  3. Ecosystems

    Pesticide makes bees bumble

    The pesticide spinosad, previously thought safe for bees, may damage their ability to forage for nectar.