"The rocky shore is one of the most fascinating of all ecosystems. It is packed with a wide variety of marine life. The shore is covered by the sea and pounded by the waves at high tide in the intertidal zone. Low tide means exposure to drying air and heat. Plants and animals living here must be able to live both in air and water; they must be able to survive the loss of almost 70 % of their body water during dry periods, and, in addition, be able to cope with freshwater rain when exposed and salty seawater when submerged."
