General Biology- Life on Mars Impossible

Biologists have recently studied Martian soil. The results show that the surface of Mars has been arid for hundreds of millions of years, so no life could have possibly developed. Satellite images suggest the soil is the same around the entire planet, thus making the results of the study applicable to all of Mars.

More: http://www.macroevolution.net/existence-of-life-on-mars.html#.T67rlsVaKSo