New study finds that large group size and mating systems where males have multiple mates drove evolution of deeper male voices in primates, including humans UNIVERSITY PARK, Pa. — Deeper male voices ...
Traditional explanations for why some animals are monogamous and others are promiscuous or polygamous have focused on how the distribution and defensibility of resources (such as food, nest sites, or ...
Biological anthropologists and evolutionary psychologists commonly take it for granted that human monogamy has a biological basis. Desmond Morris was an influential early advocate. His 1967 ...
The males' trade-off between caring for the offspring or investing in attracting additional mates is well established in the theory of mating systems. The reproductive consequences for males of ...
Male mate choice in species with conventional sex roles is difficult to explain and has, therefore, been the focus of many recent theoretical models. These models have focused on variance in female ...
Biological anthropologists and evolutionary psychologists commonly take it for granted that human monogamy has a biological basis. Desmond Morris was an influential early advocate. His 1967 ...
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