A photographic guide to the common plants and animals that inhabit the intertidal zone--the area covered by water at high tide and exposed during low tide--on the Atlantic coast from Cape Canaveral, Florida, to Cape Breton, Canada. Includes color photos, descriptions, and details for crabs, crustaceans, mollusks and their shells, jellies, barnacles, shrimp, worms, squid, mosses, seaweeds, and lichens. Learn how to identify over 500 of the most common intertidal species. Covers all different types of intertidal habitats, whether rocky, sandy, or muddy.