In 2011, Marine biologists made a baffling discovery—in excess of one,three hundred almost great circles scattered across the Mediterranean Sea floor off the Coastline of Corsica. These formations, some sixty seven toes wide, sparked a great number of theories: have been they volcanic craters, WWII bomb scars, or a https://medium.com/@perfectseoservice2017/the-thriller-of-one-three-hundred-best-circles-on-the-mediterranean-seafloor-science-unveils-the-f6327a72d07b