ES, you never give up ? I agree that someone will have to eat his own hat but he won't be the one of your expectance.

On the top picture, this is almost certainly a differential erosion of the rocks giving a snake track appearence. The lowest pic shows absolutely nothing. People from this forum allready told you that if there is life manifestation on Mars (in which I'll be very glad to learn) it will not be more elaborated than microscopic organisms. Spirit and opportunity webcams can't send close-edged pictures and won't technically be able to give more information at the microscopic level.

Have you followed the studies of the martian meteorites found on Earth ?