hamilton’s rule

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    Viruses Have a Secret, Altruistic Social Life

    Reprinted with permission from Quanta Magazine’s Abstractions blog. Social organisms come in all shapes and sizes, from the obviously gregarious ones like mammals and birds down to the more cryptic socializers like bacteria. Evolutionary biologists often puzzle over altruistic behaviors among them, because self-sacrificing individuals would at first seem to be at a severe disadvantage […]