Is the life on Earth that thrives in similar conditions (to those in Enceladus) related to the life that thrives elsewhere on Earth ? I am assuming it is an integral branch of the life that came into being some time after the Earth formed.
I wonder would it be conceivable for that form of life to exist on the Earth other
than in conjunction with the life we observe in the more hospitable regions of this planet (Earth).
Would it be exponentially harder to find life on Enceladus solely
in those inhospitable regions or did life here on Earth actually have its beginnings in unbelievably inhospitable conditions and then gradually adapt to the gentler conditions we are now familiar with?