` ::::That Neanderthals and humans lived in the same region comes straight from the reference cited, ``Neanderthal remains have been found less than 100 miles from Denisova Cave. Artifacts in nearby caves and in Denisova itself suggest the presence of Upper Palaeolithic-age people, which might include modern humans.``  That being said, it is still wrong to start the lede with the initial basis for deciding it was a new species, before we lay the groundwork, and the rest of your change still lacks a well-thought-out structure and has the same grammatical problems.  I get the impression we are dancing around the issue. You say your problem is with specific words or phrases, but then make major structural changes.   `