How can you stop harming marine life?

Well, there are a lot of things you can do to save marine life. For starters, keep the ocean clean. Don't liter or trash it. There are crews of people and tons of organizations that help to keep the oceans clean. There are also many organizations you can join or donate money to in order to help marine life. Be gentle with marine life, it will last longer if we all come together and help it. :)