Alternative explanations for the evolution of monogamy and sibling cooperation
Tuesday, May 3, 2016 - 11:40
in Psychology & Sociology
The textbook "monogamy hypothesis" argues that monogamy favors the evolution of cooperation by increasing sibling relatedness, since helpers are as related to the full siblings that they care for as they are to their own offspring. So under certain circumstances helping can be as, or even more, successful in getting genes passed on as reproducing. But in an Opinion, published May 3 in Trends in Ecology & Evolution, two experts in social and reproductive behavior say that the proof isn't all there.