Swampthings on Mars?

As if scientists needed another tantalizing indicator in their search for extraterrestrial life, the recent evidence of methane gas, apparently rampaging along the surface of Mars, gives them the catnip needed to buzz more about it. Casually known as "swamp gas," methane gas is a common compound of carbon and hydrogen, produced in one of the following ways: solar radiation; internal chemical workings (geothermal or hydrothermal activity); or from some type of life, e.g., decaying vegitation, or microbes called methanogens. Admittedly, there is Rafael Navarro-Gonzalez, who dreams of planting pine trees there one day. But the most compelling methane-related find is the discovery of