Dung trails on the seafloor. Holothurians and other creatures such as acorn worms plow up the surface of the seafloor. Over thousands of years, it is probable that the whole surface of the seafloor is disturbed by such biological activity.
Photo Location: Caribbean Sea, Mid-Cayman Rise
Photo Date: 2011 August 13
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| Added On | 16th October 2015 |
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