Environmental DNA is used in the field of molecular ecology to determine the biological diversity of the surrounding environment. Environmental DNA is defined as DNA isolated from samples of air, water, soil, etc., the DNA found is not collected from individual organisms and is found externally from living things. [1] Seymour, Mathew (2019-02-27). "Rapid progression and future of environmental DNA research". Communications Biology. 2 (1): 1–3. doi:10.1038/s42003-019-0330-9. ISSN 2399-3642.