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As a result of myriad interacting processes, coastlines present a mosaic of varied and ever-changing environments that range from precipitous sea cliffs, to esturine mud flats, and long stretches of dune-backed sandy beaches. Each environment provides a different type of habitat for plant and animal life, and all are affected by the interplay of land and water. This video, developed in conjunction with a National Science Foundation Teaching with Technology project, explains how the ceaseless motion of waves and currents and the rise and fall of tides contribute to the constant modification of the coastal zone's dynamic land/water interface.
