https://deepcarbon.net/deep-life-not-limited-microbes-earthquakes-move-surface-animals-deep http://www.manyworlds.space/index.php/2019/03/04/how-creatures-end-up-miles-below-the-surface-of-earth-and-maybe-mars-too/?utm_source=email&utm_medium=email http://www.uwindsor.ca/dailynews/tags/scott-mundle

Deep biospheres have been identified; however, the driving forces that create and support these complex ecosystems was unclear. This paper provides evidence that seisemic activity is the major driving force for deep life. https://www.nature.com/articles/s41598-019-39699-w