I just graduated with a degree in biology and had several job opportunities this summer related to my degree. However, most payed very little. The one I ended up taking pays ~$15/hour with quite a bit of overtime available if desired, so not terrible. It's temporary and I will have to find something else come fall, but I don't mind at all. Summer time is field season for biology, so there are a ton of temporary fieldwork jobs.
Like others have said, degrees in almost any area of science other than engineering are pretty much just stepping stones to something higher. If you want to make decent money in science you'll need an MS, PhD, or professional degree depending on what you want to go into. If you want to work for game and fish, the forest service, or do something private related to wildlife, an MS is probably sufficient. If you want to be in research, a PhD is the minimum you'll need. You can always teach if you want, but you'll likely have to take another year or two to get certified. Even if you don't want to do any of the above, there are many jobs out there that pay alright ($30-50k) that will take someone with only a BS, but they require a good resume, effort and creativity on your part. Get on Monster or something and start looking around.
I've found that unless someone's major was something like education, nursing, engineering, accounting, etc, they really have no idea what to do with their degree. Don't feel bad about that or like you picked the wrong major. Most undergrad degrees aren't very specific to a particular job, so it's on you to be creative in finding ways to use your degree and personal skills or continue your education. The good thing is anything in science is more difficult than most other majors, and if you paid attention in school you should have a good understanding of a lot of things relevant to society and should be very good at research (in general, not necessarily science based) and critical thinking. I think my resourcefulness and thinking skills are the most useful qualities I have, but it can be difficult to figure out how to use them to make myself (and others) money.
My advice to you would be to just try and get a job. Aim first for something related to your education, but if you get something else that's fine. Your ability to work and communicate with others, show up every day on time, and be a valued member of a crew or company is probably more beneficial than a degree anyways, and having a few good references and work experience showing you're a good worker will help open up other opportunities for you.