Is there now, or was there once life on Mars ? Our current knowledge of the Red Planet, our ancestors "God of War" has been vastly enhanced in the last several decades. At one time it was thought to be a dry and water less wasteland - that is not the case.
The existence of at the very least - microbial life and water in form of ice has been confirmed. The existence of some higher forms of life has been suggested by some of the NASA Rover images being beamed back to Earth over the last decade. Those higher life forms include Birds, Rodents, Reptiles, and even - gasp - yes - Humanoids.
None of the images are proof positive, none are the smoking gun, some are paredolia, but some, just a handful, border on the irrefutable proof that at least once , perhaps in the distant past - an intelligent civilization flourished on the surface of Mars.
The hypothesis is also proposed that perhaps, even to this day that a civilization exists beneath the dusty red surface. This page chronicles some of the photographs that appear to suggest intelligent design.