Life on Mars may be hiding or dormant. See my new blog on Big Think discussing various options how life on Mars may adapt to the challenging environment. Link through my website Searchforlifeintheuniverse:

(https://www.searchforlifeintheuniverse.com/post/life-in-mars…r-sleeping)

Astrobiologist Dirk Schulze-Makuch argues that even if Mars’s surface is uninhabitable, life could persist underground, inside salt crusts, or locked in a dormant state.