In 2011, Marine biologists created a baffling discovery—about one,three hundred approximately perfect circles scattered throughout the Mediterranean Sea floor off the coast of Corsica. These formations, some sixty seven toes wide, sparked numerous theories: had been they volcanic craters, WWII bomb scars, or anything even stranger? With this movie, https://medium.com/@perfectseoservice2017/the-thriller-of-one-three-hundred-best-circles-on-the-mediterranean-seafloor-science-unveils-the-f6327a72d07b