This area is mostly submerged – it is exposed only during low tide. It is teeming with life. There is much more marine life, especially seaweed. There is greater biodiversity, but organisms in this zone are not well adapted to dryness and temperature extremes. Low tide zone organisms include abalone, sea anemones, brown seaweed, chitons, crabs, green algae, hydroids, isopods, limpets, mussels, nudibranchs, small fish, sea cucumber, kelp, sea stars, sea urchins, shrimp, snails, sponges, sea grass, tube worms, and whelks.