title: Optimal life histories and the age-specific costs of reproduction.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000818:Animals; D002648:Child; D004484:Ecuador; D005260:Female; D005298:Fertility; D006801:Humans; D007226:Infant Mortality; D008017:Life Expectancy; D008428:Maternal Mortality; D008875:Middle Aged; D008954:Models, Biological; D011247:Pregnancy; D012098:Reproduction; D014481:United States