Strange Seabed Circles

Anyone who has watched M. Night Shymalan’s “Signs” must have gotten shivers up their spine just by looking at this photo. It looks like the seabed version of crop circles, and given that we are yet to explore 80% of the world’s waters, who know if they harbor otherworldly creatures? Fortunately, there’s a plausible explanation for these formations and pufferfish are responsible for creating the strange circles. The males reportedly move their bodies and fins in a manner that leaves the circular formations on the seabed. Female puffers then examine the formations and if they fancy what they see, mating occurs.