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In a meeting https://www.forum-deutscher-presseclubs.de/stmap_64mvltdi.html?calcitrio... ondansetron injeksi 4 mg For researchers tackling the monogamy question, here was the fundamental puzzle: Males, by sticking with one partner, seemed to lose out on the chance to father lots of children; gestation periods, after all, can be long in female mammals. That explains why most mammalian species don’t follow the one-partner rule. But for the roughly 5 percent that do, what caused monogamy to evolve?