Higher Survival with Older Siblings
Examination of cultural provisions of childcare suggests that the presence of female alloparents including maternal relatives, friends, and older siblings result in higher survival rates.
In comparison to animals, newly born human babies are entirely dependent on their caregivers and need sensitive care and attention to survive. In most cultures, the necessary care and attention are provided by mothers and perhaps that is why, when a mother dies, the probability of infant surviving becomes slim, unless the caregiver is replaced by another sensitive human being (Brittain 1992). The positive correlation between maternal and infant mortality is quite evident in Scandinavian countries with the lowest maternal and infant mortality rates and African countries with the highest maternal and infant mortality rates (World Bank 2018). Citizens of countries with very high maternal and infant mortality rates face the biggest...
- Bank, S. P., & Kahn, M. D. (1982). The sibling bond. New York: Basic Books.Google Scholar
- DeKay, W. T. (1995). Grandparental investment and the uncertainty of kinship. Paper presented to the 7th annual meeting of the Human Behavior and Evolution Society, Santa Barbara.Google Scholar
- Emlen, S. T. (1984). Cooperative breeding in birds and mammals. In J. R. Krebs & N. Davies (Eds.), Behavioural ecology: An evolutionary approach (pp. 245–281). Sunderland: Sinauer. 305–339.Google Scholar
- Fields, J. (2003). Children’s living arrangements and characteristics: March 2002. In Current population reports. Washington, DC: U.S. Census Bureau.Google Scholar
- Leiderman, P. H., & Leiderman, G. F. (1974). Affective and cognitive consequences of polymatric infant care in the East African Highlands. In Minnesota symposia on child psychology (Minnesota Historical Society, Vol. 8, pp. 81–110). Minneapolis: University of Minnesota Press.Google Scholar
- Turke, P. W. (1988). Helpers at the nest: childcare networks on Ifaluk. In Human reproductive behavior: A Darwinian perspective. Cambridge: Cambridge University Press.Google Scholar
- Weisner, T. S. (1987). Socialization for parenthood in sibling caretaking societies. In Parenting across the life span: Biosocial dimensions (pp. 237–270). New York: Aldine de Gruyter.Google Scholar
- World Bank. (2018). Retrived from https://data.worldbank.org/indicator/SH.STA.MMRT?most_recent_value_desc=false