I was walking the beach on night and spotted a small green light glowing in the sand. On a closer inspection, there was more than one in the area. They were the size of the end of a needle, and right on the shore line. I really am curious on what these are.
I was walking along the beach shore in Okaloosa Island, Florida at night when I saw tiny green dots in the sand glowing every now and then. They are the sixe of the tip of needles and there were many of them, maybe spanned out 3 to 4 feet apart.
You probably saw a swarming of epitokes of the polychaete worm Odontosyllis enopla.
The epitokes, which are modified swimming individuals, swarm solely for the purpose of reproduction. The glow results from bioluminescent substances released along with the sperm and eggs into the water where fertilization takes place.
Such swarmings relate to lunar periods. For example, people who net the tropical Pacific palolo worm for food predict swarmings with considerable accuracy. Both the Pacific and Atlantic palolo species cast off only their egg or sperm-filled hind portions, which writhe tail-first to the water surface. The palolo worms don't exhibit bioluminescence.
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