Extracted DNA naturally degrades over time due to environmental, biological, and enzymatic factors, as demonstrated by numerous forensic and ecological studies.
The retrieved literature consistently supports the scientific consensus that DNA undergoes degradation over time, driven by enzymatic activity, environmental exposure, and post-mortem processes. Multiple studies (e.g., [1], [2], [7], [9], [10]) specifically measure DNA or nucleic acid degradation rates over time. There are no papers contradicting the claim.