Mounting evidence suggests Neanderthals also had a habit of inbreeding, or conceiving with close relatives. Several studies have now reported this based onย genetic patterns andย bone abnormalitiesย thought to result from intra-family flings.
First, letโs review the facts behind these claims of consanguinity, or mating between relatives. Then letโs consider the consequences: How did inbreeding impact Neanderthal health and survival?
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The firstย strong caseย of Neanderthal inbreeding came in 2014, when scientists published a genome extracted from a toe bone found in the Altai Mountains of Siberia. Alive roughly 120,000 years ago, this Neanderthal woman had closely related parents: half-siblings, double first cousins, an uncle-niece couple or some other combo with equal relatedness.
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Until we have more genomes, itโs hard to gauge the prevalence of inbreeding and its impact on the species overall. But we can say confidently, some Neanderthals were inbred and that didnโt help their chances of surviving. Maybe it even contributed to their extinction. Hey, if inbreeding took down royal dynasties, it may have taken a toll on Neanderthals, too.
Read full, original post:ย Neanderthals Were Inbreeding. Did it Help Cause Their Extinction?
