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  1. Animals

    One-Two Poison: Scorpion starts with a cheap shot

    A South African scorpion economizes as it stings, injecting a simple mix first, followed by a venom that's more complicated to produce.

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  2. 19208

    I wonder whether researchers offer any recommendations based on a difference in effect between ingesting vitamin A and beta-carotene. Do people who consume large amounts of yellow vegetables, for example, put themselves at risk? Mary A. TurzilloBerea, Ohio Yellow fruits and vegetables contain large amounts of the vitamin A precursor beta-carotene. However, says Margo Denke […]

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  3. Health & Medicine

    Too Much of a Good Thing: Excess vitamin A may hike bone-fracture rate

    Dietary studies suggest that people who consume large amounts of vitamin A in foods or multivitamins are more likely to suffer hip fractures than are people who ingest modest amounts.