Under the Sea

arms Atlantic barnacles basking shark beach bivalve blue body bottom breeding burrow cephalopods chitons coast coccolithophores coelacanth color copepods coral crabs crustaceans currents cuttlefish deep deep-sea depths diatoms divers dolphin eels eggs eyes fathoms feed feet long female fins flattened float fronds gastropods giant grow head ichthyosaurs inches long invertebrates jaws jellyfish kinds known lampshell land large numbers larvae light limpet living fossils look male marine animals Mediterranean microscopic miles million years ago mollusks mouth mussels North oarfish ocean octopus Pacific pair pectoral fins plankton plants and animals plesiosaurs polyps prawns Radiolaria rays reefs remora reptiles rocks salps sand Sargassum sea-anemones sea-lilies sea-pens seabed seaweeds shallow waters shape shark shell ship shoals shore side skeleton skin small fishes South species spines sponges squid stalk starfish surface waters swim tail teeth temperature tentacles tide tropical tube Velella vertebrates weed whale shark worms zone