By now you probably know there is a chance that some of the fish you eat contain mercury. It's hard to think that eating seafood may not be good for our health, but in certain cases, it may be true. How mercury gets into fish and onto your plate remains a mystery for most people. They know the issue exists, but they don't have the facts straight. The Blue Ocean Institute now has an entertaining and informative feature on their website called Mercury: Not the Planet that takes viewers through some simple history and science lessons, explaining what the deal is with mercury in fish. By the end you'll know that eating large predatory fish such as shark, tuna, and mackerel, increases your chances for mercury exposure, and that by using a guide such as Blue Ocean's Guide to Ocean-Friendly Seafood, you can make wise choices about your seafood, both in restaurants and at the market.