Mysterious Underwater Circles by Japanese Fish

According to the National Oceanic and Atmospheric Administration only less than five percent of the world’s oceans have been explored. This means that more than 95% of deep underwater isn’t yet discovered. We can only imagine what crazy  and mysterious things are in unexplored ocean bowels.

This is an underwater structure built about 80 feet underwater off the coast of the southern Japanese island of Anami Oshima.  These “mystery circles” was discovered by photographer Yoji Ookata who has spent the last 50 years exploring the coast of Japan.

The artist of these mysterious underwater circles is a small puffer fish!  Through careful observation the team found the circles serve a variety of crucial ecological functions, the most important of which is to attract mates.

Check out these amazing underwater circles. How the small puffer fish could built these symmetric and really outstanding artworks?