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  1. Animals

    Not So Spineless

    Looking for personalities in animals, even among spiders and insects, could add new twists to ideas about evolution and explain some odd animal behavior.

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  2. 19912

    As I read this article, I was wondering whether the findings discussed suggest that a woman who has had both a hysterectomy and an oophorectomy should be on estrogen hormone therapy. Does a woman with no uterus or ovaries produce enough estrogen in other organs to benefit from the estrogen receptor beta? Cathy GregorAlexandria, Va. […]

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  3. Health & Medicine

    A Different Side of Estrogen

    Understanding estrogen's function is complicated by the fact that it can bind to two distinct receptors; scientists studying the second receptor now think that drugs targeting it could help a wide variety of ailments.