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From: RonO <rokimoto557@gmail.com>
Newsgroups: talk.origins
Subject: A review of Denisovan DNA in modern humans
Date: Mon, 11 Nov 2024 14:08:47 -0600
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https://www.sciencedaily.com/releases/2024/11/241108113302.htm

https://www.nature.com/articles/s41588-024-01960-y
The Nature article is paywalled.

Unlike the Neanderthal interbreeding that may have been a single event 
that resulted in the Neanderthal DNA that modern human populations have 
there is pretty good evidence that multiple interbreeding events in 
different parts of the world occurred between modern humans and 
Denisovans.  They identify 4 distinct populations of Denisovans that may 
have interbred with modern humans.  The overhype of the Science Daily 
article includes South America as a possible place where Denisovans may 
have existed, but the evidence for this in the review article was 
minimal.  They could have made it over to America, but didn't leave much 
evidence of their existence.  Denisovans probably lived through around 5 
ice ages in Asia.  So there were likely as many chances to get over to 
America as there was to get to the Philippines and New Guinea.  The 
review claims that better analytical methods need to be developed to 
figure out where the Denisovan DNA came from in South America.  The 
Denisovans interbred with Asians multiple times, and there is even the 
possibility that the bits of genome came over with genomes coming in 
after the European colonization.

Ron Okimoto