On the coast of the Musandam Peninsula of northern Oman, intertidal burrowing by the date-stone mollusc, Lithophaga spp., facilitates wave erosion and hence promotes cliff collapse. The rate of undercutting due to the molluscs is estimated to be about 0.25 cm/yr. Although this is not exceptional, its effects are exaggerated by the morphology and recent tectonic history of the peninsula.

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