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Infanticide drives female promiscuity and big balls
Female mammals appear to evolve promiscuity as a defence against infanticide by dominant males, and this in turn swells the males' testicles
Female mammals appear to evolve promiscuity as a defence against infanticide by dominant males, and this in turn swells the males' testicles
Source: New Scientist
Posted on: Friday, Nov 14, 2014, 8:11am
Views: 1905
Posted on: Friday, Nov 14, 2014, 8:11am
Views: 1905
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