A polychaete scaleworm (Polynoidae sp.) seen just above the seafloor. The combination of its undulations and the shimmering waves of its oar-like paddles that drive it through the water was positively hypnotic.

A polychaete scaleworm (Polynoidae sp.) seen just above the seafloor. The combination of its undulations and the shimmering waves of its oar-like paddles that drive it through the water was positively hypnotic. Image courtesy of the NOAA Office of Ocean Exploration and Research, Gulf of Mexico 2017.

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