Free loving mums have healthier babies
Promiscuous females are more likely to give birth to fitter offspring than their monogamous sisters, an Australian study shows.
Paternity tests showed that the sperm of some males was far more successful than others, and most importantly, that babies fathered by these males were twice as likely to survive, said Fisher.
Despite the advantages to the species from free love, males usually died due to exhaustion and aggressive encounters with other males after a single, torrid mating season.
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