Yoji Ookata has spent the last 50 years scuba diving and exploring the mysteries of the ocean. But when he went diving in the semi-tropical region of Amami Oshima he found something he had never seen before. And it turned out, neither had one else.
He had found on the seabed a large, strange looking geometric circle consisting of symmetrical ridges that measured more than 6 feet across and appeared to have been deliberately carved into the ocean floor. Well, after baffling the experts for a while, underwater cameras revealed the artist to be a small puffer fish who worked round the clock to create his masterpiece, using only his fin to carve the sand.
And why would a tiny puffer fish go to such great lengths? Take one guess. That’s right, to attract the ladies. It turns out female puffer fish, attracted by the grooves and ridges, would find their way along the dark seabed to the male puffer fish where they would mate and lay eggs in the center of the circle. The more ridges the circle contains, the more likely it is that the females will mate with the male.
via Spoon & Tamago