Area is covered and uncovered twice a day with salt water from the tides.
Organisms include anemones, barnacles, chitons, crabs, green algae, isopods, limpets, mussels, sea lettuce, sea palms, sea stars, snails, sponges, and whelks.
Many animals living in tidepools include sea stars, sea urchins, sea cucumbers, barnacles, and anemones.
The Pacific octopus also makes the tidepool home. The octopus lives in rocks and caves instead of the open sea.
For migrating birds, low tides periods are critical feeding times when birds have access to the rich food that mudflats, estuaries and similar intertidal habitats provide.
Resident birds such as herons, eagles, gulls, and many species of shorebird feed in the intertidal zone during low tides.
Animals such as bears, wolves, raccoons, mink, otter and deer forage for a variety of marine life during low tide.