Is all seaside rock vegetarian

No, not all seaside rock is vegetarian. Seaside rock typically refers to a type of rocky shore ecosystem where various organisms, including both plant and animal life, can be found. While some organisms, like seaweeds and certain types of algae, are indeed vegetarian, many other species, such as crabs, mollusks, and various fish, are not. Thus, the biodiversity of seaside rock includes both vegetarian and non-vegetarian organisms.