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  1. Genetic Pickup: Did animals get brain genes from bacteria?

    Genes that make brain chemicals may have been acquired from bacteria.

    By John Travis

  2. Setting a Stage for Cancer: Another reason for women not to drink while pregnant

    Drinking alcohol during pregnancy can cause a range of birth defects in newborns, and researchers have now shown that, in rats, it also increases the risk of breast tumors in adult offspring.

    By Carrie Lock

  3. A Fetching Lexicon: Language clues come from dog’s vocabulary

    A research team finds that a 9-year-old border collie displays a keen facility for learning word meanings, providing new support for the theory that simple types of thinking practiced by some nonhuman animals also make word learning possible in toddlers.