The evolutionary pressure to pass on DNA can produce behavior that otherwise makes no sense in a struggle to survive. Rams bash heads in fights over females; peacocks grow elaborate tail feathers that attract mates and predators alike. Sexual selection can sometimes explain phenomena that natural selection alone cannot. But could bacteria exhibit sexual selection? In an Opinion article published September 4 in the journal Trends in Microbiology, researchers at the University of Exeter argue that some bacteria might.
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Source: Phys.org