Research on Neanderthals, why the stopped existing

Incest, was normal within the family, they were a closed net.

 

Research on Neanderthals

Note: withing quotation belongs to “Trendy Matter” pics too.

https://www.trendymatter.com/

“The Truth About Neanderthals and Early Humans

1. Neanderthals Walked the Earth with Modern Man

Neanderthals, or Homo neanderthalensis, existed on Earth in the Late Pleistocene Age. They were a species of early human that some may not know actually walked the earth alongside modern humans.” 

“Their name comes from the German Neander Valley, where their remains were found in 1856. Their migration patterns were directed by the weather and availability of food.”

 “They Lived as Family Units

Much like other primates, Neanderthals lived in small, closely-knit family groups. Each of the family members would perform different roles like hunting and child-rearing.”

 “A thriving population of Neanderthals would consist of up to 50 family units who would interact together, likely sharing duties such as hunting and trading. Men, women, and even kids were entrusted with hunting. This was perhaps less productive on the whole as it didn’t account for different talents or capabilities. However, it meant everyone shared the same basic survival skills”

Note:

My own theory:  -Neanderthals practiced incest, were a homogeneous social group; some mated with homos outside their group and their genes were passed over.  They disappeared but some genes stayed with Homo-erectus, Homo sapiens and other group but Neanderthals diminished its reproduction and died, others took their places carrying their genes and staying in the mid of Western-Easter Europe. Gave descendant to the Slavs and others-

Based on many readings on Neanderthals the above is my conclusion.

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Neanderthal extinction

Replacement of Neanderthals by early modern humans.

"Neanderthals became extinct around 40,000 years ago. This timing, based on research published in Nature in 2014, is much earlier than previous estimates, and derives from improved radiocarbon-dating methods analyzing 40 sites from Spain to Russia.^[1] Evidence for continued Neanderthal presence in the Iberian Peninsula 37,000 years ago was published in 2017.^[2]

Various hypotheses on the causes of Neanderthal extinction implicate"

…yes, there are many hypotheses but, the incest one is the best to explain why they stopped existing.