Hi - it's a Juniper, not a pine - everything with needles is not pine :-) and for that matter all evergreens don't have needles, but it's a common mistake. Which juniper (there are many) I'm not sure, but for now it's not important as care info would be the same. The very first thing I'd suggest is to let most of the soil dry between waterings as they don't like wet feet, but unfortunately you can't know how it was watered (in e.g. Wal-Mart?) before you got it and so many of these mass produced juns are watered like house plants by people who only know how to use a cash register. And very often the trees will look fine for even weeks but have already begun to die off - very rigid (and crumbly) foliage is a sign, so is yellowing and a lot of brown - not the small amount of reddish brown near the bottom - that's old growth being shed annually - but all over brown. SO, presuming it's still ok (I'm not normally pessimistic, but these things are an old sad story), give it as much bright light all day as possible. And while you wait, go directly to e.g. Bonsai4me.com and read up on general juniper care as I'm not going to say more for the moment. Do not randomly prune off anything as you probably won't yet understand why, how or what to prune, but finding a local bonsai club would be terrific because they can show you how to repot properly and into what kind of mix, whether and how to prune roots, etc. and how to keep it alive in future. There's an absolute ton of info on juniper bonsai out there, but stick to immediate basics for now... forget the 'bonsai' thing til you have some idea about ongoing care.

Thanks! I did a bunch of research on junipers today and got a lot of really confusing, conflicting advice.

For example, one says to make sure it stays moist, another says let it dry out. One says submerge the whole pot in water, another says never to do that. One says that in winter, it should stay below 50 Fahrenheit, another says never let it get below 59.

Where are you getting your info from? Go to the link I gave you, then go to Evergreengardenworks.com - the best advice on your tree from a long time best expert, then go to ibonsaiclub.forumotion.com - the oldest bonsai place on the web, and you won't get conflicting advice, but you have to read what you do get in context, i.e. read the backstories rather than one-liners... the reason for getting so much (and that's actually bare bones compared to what's out there) is to get a consensus and form your own view after seeing it all AND going to a hands-on local club. The backstory stuff is about understanding that everyone lives in different climates, they may or may not be referring (in their advice) to little potted things from Wal-Mart (like yours), but rather large trees dug from the ground (don't do it without knowledge of how to do it properly and when) and trained for years in Oregon vs NY, etc. etc. There's a life long learning curve in bonsai, and I know you just want to take care of your little tree, but understanding the process from a to z makes it meaningful, so you can then do a good job with the one you have and with the next ones. Every tree, climate, soil mix, environment (in or outdoors), technique, etc. etc. is different. Bonsai are not house plants and Junipers are not tropical - but they do originate in high, windy, drying places. And about the only time you would ever, ever submerge a pot would be to drown a known infestation of ants. And anyone who says junipers shouldn't be out in below 59 F. is off their rocker.