In 2011, Marine biologists produced a baffling discovery—more than one,300 almost excellent circles scattered throughout the Mediterranean Sea floor off the Coastline of Corsica. These formations, some 67 ft broad, sparked innumerable theories: had been they volcanic craters, WWII bomb scars, or some thing even stranger? With this video, https://medium.com/@perfectseoservice2017/the-thriller-of-one-three-hundred-best-circles-on-the-mediterranean-seafloor-science-unveils-the-f6327a72d07b