25 Things You Didn’t Know About the World’s Oceans

(via Mental Floss) In 2008, the United Nations recognized World Oceans Day on June 8 as a time to celebrate the immense bodies of water that cover roughly 70 percent of the Earth’s surface. The goal of the day is to promote conservation efforts and engage activists in preserving these five crucial areas—the Pacific, Atlantic, Indian, Arctic, and Southern (Antarctic) Oceans—and their inhabitants. If you don’t know much about the deep blue sea—like why it’s not actually blue, for example—check out 25 facts we’ve culled about the world’s largest and most fascinating real estate.