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Nature Neuroscience 10, 938–940 (1 August 2007) | doi:10.1038/nn0807-938

Alpha males win again

Derek P DiRocco & Zhengui Xia

Flowers are sometimes called the universal language of love, but for many species, that distinction belongs to pheromones, airborne chemicals that provide cues concerning the individual's social status, health and genetic advantage. In rodents, mate selection is influenced by sex pheromones.