The so called "Japan Crop Circles" or "Mystery Circles" discovered on the ocean floor South Off the Coast of Japan, has been solved.

A professional Japanese photographer named Yoji Ookata noticed a complex circle with geometric patterns drawn on the ocean floor at 80 feet below sea level early this year. Later, he returned to the place with a camera crew months later and made an astonishing discovering.

The circles are also known as the "Japan Crop Circles' because

The artist was a diminutive fish.

"Using underwater cameras, the team discovered the artist is a small puffer fish only a few inches in length that swims tirelessly through the day and night to create these vast organic sculptures using the gesture of a single fin," reports the blog ThisIsColossal.

The team also found the circle's purpose was to attract mates. According to the blog ThisIsColossal, the female fish are attracted to the hills and valleys within the sand and lay eggs at the circle's center.

The reason why the female fish may leave their eggs at the center is perhaps because the grooves protect the eggs from the ocean currents.

The team also discovered that the more ridges contained within the sculpture the more likely the fish were drawn to pairing.

Watch the Japan Crop Circles Below: