Just to be nitpicky: the carbon dioxide molecules in the atmosphere of Mars (probably) have nothing to do with evolution. Unless you're a fan of cosmological na

Just to be nitpicky: the carbon dioxide molecules in the atmosphere of Mars (probably) have nothing to do with evolution. Unless you're a fan of cosmological natural selection (which I happen to be, but it's not a widely accepted theory). Anyhow, without evolution we would still have all of those things, we wound have just lost our ability to tell a convincing story for why they are the way they are. It seems unlikely, but if an alternative explanation were too arise and be deemed more useful by biologists, then the study of that theory would also be biology. In fact, it would still be biology if it were deemed less useful, it just might not make it into the textbooks in that case.