It's a bit on the late side, but I just saw this.Melanoma can occur at any age, but the median age of diagnosis is 59 and the peak risk is in the 80s.
Cheddar Man is NOT one of the original inhabitants of Europe, as was pointed out earlier. He was a late move-in from the Middle East.
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Cheddar Man - Wikipedia
en.wikipedia.org
"He is not closely related to the earlier Magdalenian individuals found in the same cave, whose ancestry is entirely from the Goyet cluster. The genomes of all British Mesolithic individuals sequenced to date other than Cheddar Man can be modelled as only Villabruna-related (WHG) ancestry, without additional Goyet-related admixture. The results of the Natural History Museum study gave evidence that Cheddar Man's ancestry, and the wave of anatomically modern humans he was part of, originated in the Middle East. This suggests that his ancestors would have left Africa, moved into the Middle East and later headed west into Europe, before eventually traversing Doggerland, a land bridge which connected Britain to continental Europe. It is estimated that 10% of the genomes of modern white British comes from this population of anatomically modern humans."
That's an interesting theory I hadn't heard before. Do you have a citation? I'm not sure why you think it impacts the discussion though.
“Europeans carry a motley mix of genes from at least three ancient sources: indigenous hunter-gatherers within Europe, people from the Middle East, and northwest Asians from near the Great Steppe of eastern Europe and central Asia. One high-profile recent study suggested that each genetic component entered Europe by way of a separate migration and that they only came together in most Europeans in the past 5000 years.
Now ancient DNA from the fossilized skeleton of a short, dark-skinned, dark-eyed man who lived at least 36,000 years ago along the Middle Don River in Russia presents a different view: This young man had DNA from all three of those migratory groups and so was already “pure European,” says evolutionary biologist Eske Willerslev of the Natural History Museum of Denmark at the University of Copenhagen, who led the analysis.”
http://www.sciencemag.org/news/2014/11/european-genetic-identity-may-stretch-back-36000-years