It takes two to tango

• Autores: Hanna Kokko, Michael Jennions
• Localización: Trends in ecology and evolution, ISSN 0169-5347, Vol. 18, Nº 3, 2003, pág. 103
• Idioma: inglés
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• Resumen

  • In most taxa, females are more likely than males to care for offspring. Why? Ever since Trivers' landmark work, the answer has been traced back to sexual differences in pre-mating reproductive investment (unequal gamete size or anisogamy). However, recent work shows that parental investment theory has inadvertently ignored a profoundly simple fact of life: every offspring has a mother and father. Taking this into account completely changes how we should think about sex differences in parental care.