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2- Figures of fertility rates by country and their ranking are based on single referenced sources, from organizations that investigate demographic issues. In several instances, they do not correspond with other sources, such as other organizations and sources that are referenced in the individual demographics by country, which can be accessed ...
Inbreeding is the production of offspring from the ... Due to higher prenatal and postnatal mortality rates, ... affecting almost half the population in some countries.
The following list sorts countries and dependent territories by their net reproduction rate. The net reproduction rate (R 0) is the number of surviving daughters per woman and an important indicator of the population's reproductive rate. If R 0 is one, the population replaces itself and would stay without any migration and emigration at a ...
Cousin marriage is a form of consanguinity (marriages among couples who are related as second cousins or closer). While consanguinity is not unique to the Arab world, Arab countries have had "some of the highest rates of consanguineous marriages in the world". [1]
Cousin marriage rates from most African nations outside the Middle East are unknown. An estimated 35–50% of all sub-Saharan African populations either prefer or accept cousin marriages. [61] In Nigeria, the most populous country of Africa, the three largest ethnic groups in order of size are the Hausa, Yoruba, and Igbo. [62]
Inbreeding – Reproduction by closely related organisms; Inbreeding avoidance – Evolutionary biology concept of prevention of negative inbreeding effects; Inbreeding depression – Reduced fitness as a result of inbreeding; Incest – Sexual activity between immediate family members or people considered too closely related to marry
List of U.S. states and territories by birth and death rates; References External links. This page was last edited on 28 April 2024, at 08:34 (UTC). Text ...
The mean age at childbearing indicates the age of a woman at their childbearing events, if women were subject throughout their lives to the age-specific fertility rates observed in that given year. [1] In countries with very high fertility rates women can have their first child at a much younger age than the mean age at childbearing.