Bizarre Creature in Idaho Raises Prospects for Life on Mars

Researchers have found an organism that feeds on hydrogen, breathes CO2 and expels methane gas. What's interesting about this organism is that it produces the perfect environment for more organismal life to start. This organism naturally lives in an extreme environment deep under Idaho's surface (about 660 feet). What's interesting about such an organism is that it's not dependent on O2 nor does it need sunlight to survive. Hence, it may be a potential organism that could flourish well on Mars. Whether or not scientists were speculating on contaminating the surface of Mars with such an organism was not stated.
http://www.space.com/searchforlife/life_methane_020116.html