Answer :
‘Neandertal and human nuclear DNA sequences’ and ‘anatomical characteristics’ are two main pieces of evidence that support this theory.
Neanderthals are our closest extinct human ancestors, along with a group of humans from Asia known as Denisovans. According to scientific evidence, our two species descended from a single ancestor.
While modern humans, or Homo sapiens, were emerging in Africa, Neanderthals were evolving in Europe and Asia.
Various findings demonstrated that both groups had significant periods of overlap, providing "ample time" for interaction and interbreeding.
The following provides some proof for the theory:
Neanderthal DNA is 99.7% identical to current human DNA, as opposed to modern humans and chimpanzees, which share 98.8% similarity.
all contemporary ethnic groups, except Africans, have some Neanderthal DNA in their genomes.
the existence of both modern and ancient (Neandertal) anatomical traits in several Late Pleistocene European skeletons.
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