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Nature 451, 24-25 (3 January 2008) | doi:10.1038/451024a; Published online 2 January 2008

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Neuroscience: Love hangover

Leslie C. Griffith1

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In many species, males have developed strategies to safeguard their genetic material from dilution by that of competing males. Fruitflies achieve this by altering the behaviour of their partners.

Sex can be transformative. Humans often romanticize the after-effects of copulation, but for most organisms there are real biological consequences to mating that go beyond the transfer of sperm.

  1. Leslie C. Griffith is in the Department of Biology, Volen Center for Complex Systems and the National Center for Behavioral Genomics, Brandeis University, 415 South Street, Waltham, Massachusetts 02454-9110, USA.
    Email: griffith@brandeis.edu

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