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This DNA can survive millions of years:
"The DNA record confirms the presence of hare and mitochondrial DNA from animals including mastodons, reindeer, rodents and geese, all ancestral to their present-day and late Pleistocene relatives ... The survival of such ancient eDNA probably relates to its binding to mineral surfaces."
(A 2-million-year-old ecosystem in Greenland uncovered by environmental DNA). So why is the dogma that the most ancient 'human' DNA can't last that long" so sacrosanct?
I mean the atoms that make up now-a-days DNA molecules and those way-back-when molecules are the same (ACTG molecules have same atoms that haven't changed either).
The mastodon ("Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;") and ancient "human" ("Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;") eucaryotic cells both contain eucaryotic DNA ("eukaryotic cells have nuclei and cell organelles, and the amount of DNA present is large").
And the proof of the pudding, so to speak, is that some of the sequences from those animals are in homo sapiens DNA too (see here).
Genetics is a realm where dogmatism has held one of longest lasting DNA sequences ever.
The previous post in this series is here.
