File:Red Queen.jpg

The Red Queen hypothesis posits that sex allows hosts to evade co-evolving parasites. Photo by: William F. Duffy From: The Red Queen Gets a New Lease on Life Gross L PLoS Biology Vol. 4, No. 8, e285 doi:10.1371/journal.pbio.0040285 Source: http://biology.plosjournals.org/archive/1545-7885/4/8/figure/10.1371_journal.pbio.0040285.g001-M.jpg

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