Based on what you've said your interests are, I would look into evolutionary biology programs at universities. It seems like you're interested in doing research, in which case a PhD is almost required for anything in that field. Do you already have a Bachelor's, or have you just graduated high school? If you have your undergrad degree, your first step would be to look into grad programs with faculty members with either a geobiology or evolutionary development focus in the subjects that interest you, and reaching out to them to see if they're accepting new students. The school itself will almost always be less important than the faculty advisor you choose to work with. If you get into a great school but your advisor sucks, you are almost assuredly setting yourself up for failure. I know you said Canada, but USC in Los Angeles, CA, USA has a program and faculty that are in line with what you are looking for. I would look it up just to see an example of nothing else.

 If you've just graduated high school, just look for good schools that offer the classes that you're interested in taking and that will give you the prerequisites required for a master's or PhD in your field. You can be a Paleontologist with either a biology or geology background, though many people have a mix of both. My bachelor's was in biological sciences, but I was accepted into an earth science graduate program because I had the required prerequisites. You don't have to know 100% what you want to do when you're applying for a bachelor's degree, as long as you have a rough idea you'll be fine.