62) Strange drawings in the sand

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Strange drawings in the sand

 One of the underwater mysteries that once baffled experts was the discovery of strange drawings in the sand consisting of almost perfect circular patterns off the coast of Japan. It took him a decade to figure out why they originated and why they suddenly appeared and disappeared until he was finally able to discover it. The author of these amazing shapes, about 2 meters wide, was a newly discovered species of puffer fish measuring no more than 12 cm. Later studies determined that they were decorative rings to attract mating partners. Males spend six weeks creating these "crop circles" underwater to mate for just a few seconds. To make them, he collects fine sand in the dunes and decorates them with sea shells he finds. If he is lucky, a willing female will stand in the center of the circle to signify approval of the mating. If not, the ocean current will wash away his art

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