Marine worm mounds

Marine worm mounds

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Credit: ALEXIS ROSENFELD/SCIENCE PHOTO LIBRARY

Caption: Marine worm mounds. The cone-shaped mounds seen covering the seabed are made by animals living in the sand. They are most often marine worms that live in U-shaped tubes in the seabed. The worm is found in the lower section of the tube, where it filters sand by creating a water current through the tube from which it ingests sand particles. The worm feeds off plankton in the sand and obtains oxygen from the water. The worm excretes the sand at the other end of the tube, forming one of the mounds seen here. Photographed in the Red Sea, off the Egyptian coast.

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Keywords: animal, biological, biology, egyptian, fauna, floor, indo-pacific, invertebrate, invertebrates, marine, mound, mounds, nature, ocean, red sea, sand, sandy, sea, seabed, tropical, tropics, underwater, wildlife, worm, zoological, zoology

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