Behavioral Ecology and Sociobiology · 1985 · 42 citations · 17 references
Life SciencesAnimal SciencesPoultry ScienceFertilityReproductive PhysiologySexual SelectionBird ReproductionEgg FertilityEgg Laying PhysiologyParental InvestmentReproductive PerformanceWildlife ReproductionBoar Reproductive PerformanceMale Reproductive PerformanceParent-offspring InvestmentParental AllocationReproductive Performance Selection
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On the Evolution of Mating Systems in Birds and Mammals
Gordon H. Orians · The American Naturalist · 1969 · 1.5K citations