I'm very seriously considering leaving my career in marketing to persue an education, and subsequently a career, in biology. I'm hoping that the members of this forum can help me get a better perspective on this path, and provide advice. I'm very interested in the natural world; the interaction between plants and animals and the natural systems they unwittingly setup; the astonishing diversity of life on this planet and how it came to be this way; the various mechanisms plants and animals evolve to deal with their environments; etc... Frankly, I just find life to be fascinating! I've definitely decided to go back to school, regardless of what my major winds up being, but I think I'd really like to study some aspect of biology. I find school is much easier when you're learning about something you're passionate about (obviously). However, I'd like the major I pick to be something that could be applied to a new career path. I know many people go to school for one thing and then wind up doing something else, but I get the feeling this isn't the case in the sciences. What I'd like to wind up doing as a carreer is either researching ecosystems or researching animals and plants. I'd like to be the guy that goes down to the Amazon and classifies all the unclassified plants and animals. This may not be a realistic goal, I understand, but I'd be happy doing anything in that vein, even if it was studdying mushrooms in new england. I'd also like to be the guy that goes and studies some ecosystem somewhere and ascertains the relationships between plants and animals within it. Something along these lines. Is that realistic? Or is this like sound engineering (my last major) where only a small handful of the people actually wind up working in a recording studio somewhere? So basicly, what majors could I actually apply to a career? How hard is it to actually find work doing stuff like what I've described? Are there more realistic career paths within the natural sciences?