New to LaTeX, running Mountain Lion on Mac. I have seen plenty of posts which all suggest that to use packages, they should be included in the ~/Library/texmf/tex/latex/ folder, such as on this question: Installing new style packages on a Mac
However, I have been using various packages and they've been working fine, such as natbib and the apalike style, even though I didn't have a texmf folder until just a moment ago when I created it. My bibliography was working, but as far as I can tell, I didn't have the apalike style on my Mac anywhere (including hidden files), so it shouldn't have been?
Firstly, how can LaTeX use natbib's apalike style if, apparently, it's not on my Mac?
Secondly, how can I go about locating, and editing, whichever apalike style I'm actually using?
I'm struggling a little with some of the logic around LaTeX, like its use of a style file which is apparently not on my Mac.
Edit: The reason this is bugging me is because I'd actually like to edit the apalike style, but all of the instructional guides I can find talk about editing the existing file (which also makes more sense than a newbie like me trying to write it from scratch).