What advice do you have for people interested in dolphin and marine animal research?

I would advise you to read about the different topics and animals that you find interesting. To write to the authors and other scientists to learn more about their work. Ask for reprints of their work. Visit aquaria and other facilities that might have information about the ocean or her marine inhabitants. Look for internship or volunteer programs. It is not enough any more to say "I want to study dolphins." You must begin to narrow your question and focus. What do you want to study? What topic interests you? What information do you want to learn? And, while you are still with your parents and they are paying the bills is the best time to participate in volunteer programs … you need to have experience to get experience. Volunteering for various groups will allow you to get experience but also learn about your interests and determine if this is truly the area you want to study and work in.