The surprising truth behind the strange circles under the ocean startled the scientists

The strange circles of the Japanese seabed once caused a headache for scientists to think now has a solution.

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When they discovered the mysterious circles at the bottom of the sea, scientists came up with many theories about its origin, due to seismic vibrations, ocean currents or even sea monsters that created them. .

After placing the surveillance camera, they couldn't help but be surprised to know the truth behind those circles. It is true that a marine creature created it, but not a sea monster but a Japanese puffer fish.

Japanese puffer fish is a relatively small creature, the male is usually only about 13cm long. Their body color is quite faint, easily blending into the color of the water environment at the bottom of the ocean so it is difficult to recognize.

So, what is this pufferfish species creating these unique, strange circles for what? If you want an answer, please see the video below.