"Yet we remain on the shore of what we know" "Four billion years ago" "As the molten Earth cooled, a vast world ocean was formed." "This sea became the cradle of life on Earth" "The ocean average is 2 miles in depth and it's filled with life" "The underwater world supports lifeforms in a far wider diversity of shapes and colours" "That exists on land" "The oceans contanis creatures as delicate as the jellyfish,or as powerful as the whale." "Somehow they all fit toghether." "And we're just beginig to understand how" "Our growing knowledge is important" "We can't protect what we don't understand" "We live beacause the sea lives." "THE Living Sea" "1 Islands in the South Pacific" "The rhythm of our lifes is the rhythm of the sea" "We are born on a certain tide we die on another" "The tide carry our boats out to the fish" "It brings us back to feed our family" "The seasons of our lives depend on different currents" "Also guide us to capture different species" "Ocean currents caused by winds and the earth rotation" "Circle the globe,linking what we once thought were many separate seas" "We now realise there is only one ocean" "The world ocean." "The waters of the world ocean wash the worm volcanic coastline of Hawaii" "These same waters lap against the frozen inlands of Alaska" "And pulse through the Red Sea between Africa and the Arabian Peninsula" "These world currents also nourish the giant kelp of California" "Which can grow a foot or more in a single day" "The worls aquatic plants,including kelp provides 70% of the oxygen we brethe." "The world's oceans is a single interconnected system" "For example,one current flows half-way across the world from Ausrtralia past Africa" "Then joins the Gulf Stream in the North Atlantic" "Just as currents move the waters of the world ocean" "So do the tides which flow under the gravitational pull of the moon" "High tides follow the moon as it orbits the earth" "Canada's Bay Fundy on the Atlantic coast is famous for its immense tidal flow" "Up to a trillion tons of water enter and leave the Bay with each tide." "High tides can reach 50 feet and more" "Low tides empty coastal channels leaving veines of red mud" "The tides enrich the land, the land enriches the sea." "While the moons gravity tugs the world ocean to a depth of 1000 feet" "Winds churn its surface" "Ocean waves driven out from fearst storm centers,often travel for a week or more" "Until they explode against the land." "Large waves moving at speeds of up to 70 mile/h surge across thousand of miles of open ocean" "When these waves approach the coast of Oregon,at Cape Disappointment" "They keep the U.S. Coast Guard busy" "Here they teach heavy surf rescue" "First thing you learn at this school is humanity" "In the past two century over 1,000 vessels had been lost here at Cape Disappointment" "When waves are small,Oscar our search and rescue dummy likes to take a swim." "Man over board !" "We were ready to be exposed Wai info" "Search and rescue durring calm water is no problem" "We need to be able to rescue those in 15 foot seas." "A 15-foot wave can drop 200 tons of water on a boat" "The ocean size and power dominate our planet" "For centuries sailors feared its distructive force" "Today surfers meet it at the point of its greatest fury." "Where they find themselves mysteriously at home." "You're riding these waves,that have traveled thounsands and thousands of mile" "You're at the mercy of the ocean." "You're underneath the waves" "You hear the rocks rolling around on the ocean floor" "You hear thundering sound of waves" "It's just amazing." "It would be great living underneath the waves forever." "Despite its great power" "The sea invites contemplation" "What is our place beside the immensity of the ocean" "For me the ocean always has special signifycants" "Cause you're so close to nature" "There's so much life around you under the ocean" "There's fish there's dolphins and there's whales there's sharks" "Heaven knows what else swimming around you all the time" "They are so special that I felt happy" "You really think that he is part of the marine" "Is a good feeling" "You need to find this feeling" "I am confident that the oceans have been dealing with people Are part of the natural" "Our relationship with the sea is seldom very deep" "Most of our contact with it takes place on the surface" "We are drawn to the ocean" "But how do our ever increasing number threaten the health of the living sea" "To find out we need to look beneath the surface" "Scientists at Monterey Bay Aquarium Research Institute" "Use remote-controlled submersible to study the ocean" "And monitor our impact on it." "We call them ROV" "But officialy is a remotly operated vehicle" "It's the underwater equivalent of a NASA space probe." "The deep sea project chief is oceanographer Bruce Robinson" "Vehicle heading 189" "Vehicle depth 30 feet ,moving down" "As the ROV descends to 1500 feet, It enters the world below" "While we stay on the mother-ship,up on the surface,ROV dives sending live video pictures" "On many dives we fins species never before seen by anyone" "Now 1,500 feet" "Is that the same species that you and George described ?" "I think so,while we're looking on the side apears to have a different configuration." "Here,let me put it on the bigger monitor." "Hey,what is this showing up on the sonar screen ?" "On this particular dive,our sonar locked on to something big" "About half the lenght of a football field." "It was the first time we'd seen this type of Siphonophor" "We moved in on its head" "Look at the detail of that head" "We can see how the swimming bells pulse the valves close after their thrust" "So that water doesn't go back inside" "The Siphonophors one of the most remarcable animals on Earth" "It sounds like science fiction" "But it's not" "It's actually made of hundreds of separates specialysed individuals" "The swimming bells are separated units, so are the stomachs" "So are the reproductive sections" "This animal is so huge" "It's hard to imagine all this individuals units working together" "How many other creatures are there like the Siphonophor" "And what could they tell us about the vitality of the sea ?" "The middle ocean level is enormous." "And we've only studied a small fraction of its volume." "We still got a lot of work to do." "All over the world" "Scientists are finding evidence of the conections that link the living sea." "What we do in one place affects the entire ocean." "Off SanDiego oceanographers are studying the impact of pollution on the kelp forests." "Which are nurseries for spawning fish." "In the central Pacific giant clams some weighing 400 pounds" "Face extinction because of overharvesting" "Scientists study the clam spawning cycle." "An adult clam is both a male and a female, it releases millions of tiny eggs" "And then even more sperm" "Today using simple technichs, scientists can make clam spawn." "They now produce over one million sea clams a year" "Here at the Monterey Bay Aquarium central California" "Sea otters that have lost their parents bond with the human trainer" "I try to teach the baby otter to hunt for food" "It begans to think of me as its mother" "And after a year it's hard for me to return the baby otter to its own home the open ocean" "Like the sea otter,the humpback whale was once hunted nearly to extinction." "In Bal Harbour Maine,Dr. Steve Katona leeds a team studying the humpback" "The underside of the humpback fluke is like a fingerprint" "No two have the same markings" "That's what allow Steve to track them." "The first time a whale is photographed it's given a name and number" "Which we share with other research station all over the Atlantic ocean" "I'm matching our photos with other sightings,we follow the whales migrations." "Wrong pattern." "Once we identify the whales we can count them" "There's no question the restriction for hunting are working" "They're now over 1200 worldwide,growing." "The expanding population of humpbacks is a messure of our growing love for the sea." "In one isolated group of island that same wisdom that same love is called tradition." "The remote island chain of Palau located near the ecuator,east to the Phillipines" "Gives scientists a rare look at a vanishing underwater world" "These waters may contain more species of marine life that any other place on earth." "Historically,Palau had little contact with the outside world" "Palauns still maintain their tradition of profound respect for the sea." "For 3000 years our ancestors lived in harmony with the sea" "Never taken more than they needed" "Each family group worked a patch of reef They tended this reef like a garden" "I'm Francis Toribiong" "Although he's old now my father still swims the reefs with me" "Our waters are protected by a barrier reef" "This's one reason we have so many fish so much life here" "I was born by the sea." "When I was a boy i was fan of storyboards" "After the old men would teach us an ancient legend" "We try to bring the story to life in a piece of wood." "This one is about how these islands came to be" "All the stories are about our long ago people" "We are islanders Our lifes are at the sea." "I think the traditional methods are the best" "Even today my children have one foot in the old world and one in the new" "I try to teach my son Wes And daughter Julie traditional methods" "It's ok with me if they like speedboats as long as they respect the sea" "Today i'm taking my children to an island they've never seen before." "We have over 200 rock islands in our waters We called them floating gardens" "Mostly we do scuba for fun, but also it's a kind of worship" "I hope my children will fall in love with the sea." "We are lucky today.This the first time my children have seen a coral fish" "The coral fish is very shy and quite intelligent" "It can change its spots to communicate with other coral fish or can change colour for camouflage" "Since it's a type of squid,can also release a thick cloud of ink" "That's why we don't want to get to close." "Coral looks like a plant but it's realy an animal" "When coral dies it becomes like rock" "A new coral grows on top of the old scheleton." "Coral reefs are always growing" "They're the largest structures made by any living thing,even by us" "We know that what happens in other parts of the sea touches our waters" "Far away big factory fishing boats led many groopers in tuna" "Now we seldom see these fish along our reefs." "It's all one ocean." "This is what i'm teaching my children today." "Scientists also like to come here to learn." "They say our coral reefs our fish still hold secrets." "We're flying south from the main island to one of the most bizare and dangerous diving sites" "With me is marine biologist Bill Hamner and his wife Peggy" "My name is Laura Martin." "I've been here gor five years." "studying one of the most strangest creatures in all the islands" "It lives here in this salt water lake" "We're studying this lake to learn more about the world ocean" "At the end of the last ice age as sea level rised salt water filled the lake,and because it's small and eclosed what we call a closed system,the lake is like a test tube for scientific study" "Ocean species have been trapped in this salt water lake for thousands of years." "Today is my first visit and I'm a little nervous." "Swimming into a mass of a million jellyfish you can expect to be stung" "But you don't." "These jellys have lost their need to sting" "Each morning over a million jellys gather travel toghether across the lake swimming almost a mile a day" "They follow the same path and the same schedule every day" "You could set your watch by it" "Yet,here's an organisme which has no eyes no brain,following complex migration pattern" "These jellyfish follow the sun because inside their bodies,each one maintains a crap of algaes,solar source for food" "It's roughfly equivalent to carry around a bag of vegetables" "The algae needs sunlight to grow." "Most jellyfish are hunters stinging their prey before they eat them" "These jellys are farmers they don't need to sting" "We found that there are three distinct deep layers in the lake" "The top layer is like sea water" "The middle layer is thick bacteria" "Below that is a highly toxic layer" "At night the jellys descend to this nitrogen rich bottom layer of the lake" "To fertilize their internal gardens" "As we descend into the poison layer to take samples" "HydrogenSulfate begins to enter our blood through the skin excluding oxygen almost immediately, a wetsuite is no protection" "If we were down here 5 minutes it could be fatal" "We only stay 45 seconds" "These jellyfish which Laura Martins will study for the next 5 years" "Have shown a remarcable ability to adapt" "Yet they are among the most fragile creatures on Earth" "The ocean accommodates creatures as delicate as the jellyfish" "Or as powerfull as the whale" "Somehow they all fit toghether" "And we're just beggining to understand how" "Our growing knowledge is important we can't protect what we don't understand" "What we understand most profoundly we love" "Here in the islands of Palau" "Respect for the sea is past on from mother to daughter" "From father to son." "It is carved into our storyboards :" "a woman once had a baby grow the board says" "The child grew so large that she fell into the sea" "The parts of her body that poped up above the surface" "Became our islands of Palau" "I love this story" "Because it tells me that our lives and the life of the sea are all of one piece" "Breaded toghether" "Here we are islanders we live because the sea lives" "It really means a lot to me that these huge and beautiful creatures" "Which came so close to extinction are on their way back" "Whale population are yardstick I use to gage the health of the ocean" "By that mesure I think we have reasons to hope." "Our efforts to sustain the life of the sea" "Have made a difference" "Yet scientist have shown us that the ocean enviroment is much more fragile" "Than we ever thought." "Because the land we live upon occupies only a fraction of the Earth surface" "We are all islanders no matter where we live" "For rain,for food, even for the air we breath" "We all depend of the health of the ocean" "All life on Earth is a celebration of the living sea." "THE LIVING SEA" " 421 we'll have Oscar aboard in 20 seconds." " Copy that !" " Keep up the good work !"