Limpets are grastropods, which are mollusks (animal that dwells inside the shell) that creates one shell. Limpets are composed of a large group of flattened or elevated shells found along seashores worldwide. The limpet outside shell can be smooth or radially ribbed. They are smooth on the inside and have a horseshoe shaped muscle impression. The animal (mollusk) stick tightly to rocks, the shape of their shell act as a barrier to wave action. Most Limpet Shells feed on algae, passing by as they cling to rocks in the shoreline tidal flow.
