Why children from the same family are so different from one another

Human Nature 7 (3):281-290 (1996)
  Copy   BIBTEX

Abstract

The well-established finding that siblings growing up in the same family turn out to be very different from one another has puzzled psychologists and behavior geneticists alike. In this theoretical note we describe the possible ontogeny and phylogeny of a sibling differentiation mechanism. We suggest that sibling competition for parental investment results in sibling differentiation on a number of characteristics, producing different developmental trajectories within families. Variations in developmental trajectories within families may have had fitness advantages in ancestral environments because(a) sibling competition for extrafamilial resources would be reduced and(b) these variations would be suited to environments containing a variety of niches or to changing environments. Predictions derived from this model and an example of an application to attachment theory are presented

Links

PhilArchive



    Upload a copy of this work     Papers currently archived: 89,764

External links

Setup an account with your affiliations in order to access resources via your University's proxy server

Through your library

Similar books and articles

Birth order and relationships.Catherine Salmon - 2003 - Human Nature 14 (1):73-88.

Analytics

Added to PP
2013-11-24

Downloads
19 (#675,802)

6 months
1 (#1,018,209)

Historical graph of downloads
How can I increase my downloads?