The unexpected artist of this sand circle was found to be a tiny male puffer fish. It spent days and nights to make the circle using only a flapping fin to attract a mate. After completing the circle the fish actually decorated it with broken pieces of shells. Females who mated with the male laid their eggs in the center of the circle. As for the seashells, they, too, may be more than just decoration. It’s possible they provide nutrients to the young puffer fish as the eggs hatch.
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