More surprises are hidden in the crevices between rocks. Tide pools, which hold seawater, enable aquatic organisms to survive while the tide is out. Look for sea stars(or starfish) , anemones, and sea urchins clinging to the walls of these natural aquariums. Sculpins and pricklebacks are small fish that often hide beneath shadowy overhangs to avoid the notice of feeding birds and to escape the agile arms of hungry red octopuses.In turn, the fish feed on resident crabs shrimp. But very few animals bother nudibranchs. If you are lucky enough the feathery or bumpy surface of its skin. most creatures in the tide pools have camouflage coloration that conceals them from predators. the nudibranch's flamboyant appearance, taking the opposite approach, is a warning that it is poisonous