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  1. Health & Medicine

    Heartening Responses: Depression drugs may aid survival after heart attack

    Depressed patients recovering from heart attacks receive big heart-health benefits by taking prescribed doses of the antidepressant drugs known as selective serotonin reuptake inhibitors.

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  2. 19568

    Your article suggests that the change is an evolutionary process. However, this and the other examples given are all more selective breeding than natural selection. In this case, organisms with undesirable characteristics (smaller size) are overrepresented during reproduction as the result of removing the larger organisms from the breeding population. Robert ArdreyPrescott, Ariz. The tale […]

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  3. Plants

    Honey, We Shrank the Snow Lotus: Picking big plants reduces species’ height

    Years of harvesting the larger plants of a Himalayan wildflower used in traditional medicines may be driving the evolution of a stubbier plant form.