Rock pools are an interesting distraction on seaside holidays. Shrimp mill about searching for food, periwinkles, limpets and whelks crawl on the rocks, while crabs and fish make the most of shelter, hiding away until night when they can forage more safely.Seaweeds (algae — plants) provide animals with both protection and food. But life on rocky shores can be very hard — and I’m not referring to the rock itself. Acted out under the cover of seaweed are fascinating interactions between organisms and with their environment.
Rocky shores are one of a range of different intertidal habitats that constitute a distinct environment somewhere between entirely marine and entirely terrestrial. The principal feature of a rocky shore is that the substratum is hard and impenetrable to all but a few animal species.
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