Jeff remember the conversation we had about subterranean elephants in Africa? The ones that were avoiding hunters and finding water by making dangerous treks into caverns for shelter and water; and how we related it to life on Mars and when I explained chemosynthesis in organic slime (the bacteria floating on the water in caves, getting energy from essentially eating minerals and shit) that has existed in caves for hundreds of, if not more, years. Check out the first paragraph in particular of this news report.
It makes me feel like we are really smart :) The harsh reality of life below Mars