The Large Marine Algae

In addition to cephalopods, echinoderms, and jellyfish—considered culinary curiosities by many—and, of course, fish and marine animals, the oceans of the world are home to the large marine algae, known popularly as seaweeds. They belong to the largest biological kingdom on earth, the algae. This classification encompasses a very heterogeneous group of living organisms, ranging from the microscopically small unicellular ones to the giant kelp, which at almost 200 feet (60 m) in length, is among the largest organisms found in the sea.