In 2011, Maritime biologists made a baffling discovery—more than one,three hundred just about best circles scattered throughout the Mediterranean Sea ground off the Coastline of Corsica. These formations, some 67 toes huge, sparked many theories: were they volcanic craters, WWII bomb scars, or something even stranger? During this video https://medium.com/@perfectseoservice2017/the-thriller-of-one-three-hundred-best-circles-on-the-mediterranean-seafloor-science-unveils-the-f6327a72d07b