Deep ocean mysteries and wonders - David Gallo
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0:14 - 0:17You know, I had a real rough time in school with ADD,
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0:17 - 0:19and I have a PhD.
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0:19 - 0:21I earned a PhD, but it's tough to pay attention to
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0:21 - 0:24biology, geology, physics, chemistry -- really tough for me.
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0:24 - 0:27Only one thing grabbed my attention.
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0:27 - 0:30And it's that planet called Earth,
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0:30 - 0:32but in this picture right here you'll see that
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0:32 - 0:34Earth is mostly water -- that's the Pacific.
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0:34 - 0:3770 percent of Earth is covered with water and you could say,
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0:37 - 0:39"Hey I know planet Earth. I live here."
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0:39 - 0:40You don't know Earth.
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0:40 - 0:43You don't know this planet because most of it's covered with that --
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0:43 - 0:45average depth is 2 miles.
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0:45 - 0:46And when you go outside and look up
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0:46 - 0:48at the like the Empire State building, Chrysler building,
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0:48 - 0:51the average depth of the ocean is 15 of those
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0:51 - 0:52on top of one another.
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0:52 - 0:55We've explored about 5 percent of what's in that water.
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0:55 - 0:59"Explored," meaning for the first time go peek and see what's there.
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0:59 - 1:01So what I want to do today is I want to show you
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1:01 - 1:04some things about this planet, about the oceans.
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1:04 - 1:06I want to take you from some shallow water down to the deep water,
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1:06 - 1:09and hopefully, like me, you'll see some things
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1:09 - 1:12that get you hooked on exploring planet Earth.
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1:12 - 1:15You know things like corals, you've seen plenty of corals,
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1:15 - 1:17those of you that have been to the beach, snorkel,
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1:17 - 1:19you know corals are amazing places to go --
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1:19 - 1:23full of life, some big animals, small animals, some nice,
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1:23 - 1:25some dangerous, sharks, whales, all that stuff.
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1:25 - 1:27They need to be protected from humanity.
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1:27 - 1:29They're great places, but what you probably don't know about
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1:29 - 1:32is in the deep ocean, the very deep part of the ocean,
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1:32 - 1:34we have volcanic eruptions.
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1:34 - 1:36Most volcanoes on Earth are at the bottom of the sea --
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1:36 - 1:39more than 80 percent -- and we actually have fire,
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1:39 - 1:42fire deep inside the ocean, going on right now.
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1:42 - 1:44All over the world, in the Pacific, the Atlantic, the Indian Ocean,
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1:44 - 1:47in this place, the ocean floor, the rocks actually turn to liquid.
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1:47 - 1:50So you actually have waves on the ocean floor.
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1:50 - 1:53You'd say nothing could live there, but when we look in detail,
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1:53 - 1:56even there, even in the deepest, darkest places on earth, we find life,
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1:56 - 1:59which tells us that life really wants to happen.
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1:59 - 2:01So, pretty amazing stuff.
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2:01 - 2:03Every time we go to the bottom of the sea,
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2:03 - 2:05we explore with our submarines, with our robots,
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2:05 - 2:08we see something that's usually surprising,
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2:08 - 2:10sometimes it's startling and sometimes revolutionary.
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2:10 - 2:12You see that puddle of water sitting there.
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2:12 - 2:14And all around the water there's a little cliff,
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2:14 - 2:16there's a little white sandy beach.
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2:16 - 2:19We'll get closer to it. You'll see the beach a little bit better,
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2:19 - 2:21some of the waves in that water, down there.
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2:21 - 2:23The thing that's special about this water is that
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2:23 - 2:25it's at the bottom of the Gulf of Mexico.
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2:25 - 2:29So you're sitting inside of submarine looking out the window
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2:29 - 2:32at a little pond of water beneath the sea.
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2:32 - 2:35You know we see ponds, we see lakes, we see rivers --
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2:35 - 2:38in fact right here is a river at the bottom of the ocean
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2:38 - 2:40going from the lower left to the upper right.
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2:40 - 2:42Water is actually flowing through there.
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2:42 - 2:45This totally blew our minds: how can you have this at the bottom?
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2:45 - 2:47You're in the ocean looking at more water.
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2:47 - 2:50And there's animals that only live in that water.
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2:50 - 2:53So, the bottom of the ocean --
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2:53 - 2:56I love this map because it shows in the middle of the ocean there's a mountain range.
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2:56 - 2:58That mountain range is the greatest mountain range on Earth.
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2:58 - 3:00It's called the Mid-Ocean Ridge --
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3:00 - 3:0350,000 miles long, and we've hardly had a peek at it.
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3:03 - 3:04Hardly had a peek at it.
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3:04 - 3:07We find valleys, many thousands of valleys
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3:07 - 3:10larger, wider, deeper than the Grand Canyon.
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3:10 - 3:13We find, as I said, underwater lakes, rivers, waterfalls.
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3:13 - 3:15The largest waterfall on the planet
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3:15 - 3:17is actually under the ocean up near Iceland.
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3:17 - 3:21All that stuff in that 5 percent that we've explored.
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3:21 - 3:23So the deal about the ocean is that
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3:23 - 3:26to explore it you've got to have technology.
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3:26 - 3:28Not only technology, but it's not just Dave Gallo
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3:28 - 3:30or one person exploring. It's a team of people.
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3:30 - 3:32You've got to have the talent. You've got to have the team.
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3:32 - 3:36You've got to have the technology and in this case it's our ship, Atlantis,
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3:36 - 3:37and the submarine, Alvin.
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3:37 - 3:40Now, inside that submarine -- this is an Alvin launch --
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3:40 - 3:43there's three people. They're being wheeled out onto deck.
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3:43 - 3:46There's 47 other people. The team work on that ship
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3:46 - 3:47making sure that these people are okay.
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3:47 - 3:50Everybody on that submarine is thinking one thing right now:
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3:50 - 3:53should I have gone to the bathroom one more time?
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3:53 - 3:55Because you're in there for ten hours --
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3:55 - 3:57ten hours in that little sphere.
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3:57 - 4:00Three of you together and nobody is going to be around you.
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4:00 - 4:03You go into the water and once you hit the water it's amazing.
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4:03 - 4:06There's a lovely color blue that penetrates right inside you.
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4:06 - 4:08You don't hear the surface ship anymore,
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4:08 - 4:10you hear that pinging of a sonar.
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4:10 - 4:12If you've got an iPhone you've got sonar on there --
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4:12 - 4:15it's that same pinging that goes down to the bottom and comes back up.
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4:15 - 4:18Divers check out the sub to make sure the outside is okay,
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4:18 - 4:20and then they say "Go,"
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4:20 - 4:23and down you go to the bottom of the ocean and it's an amazing trip.
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4:23 - 4:26So for two and a half hours you sink down to the bottom.
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4:26 - 4:29And two hours of it is totally pitch black.
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4:29 - 4:31And now we thought that nothing could live inside that world
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4:31 - 4:33at the bottom of the ocean.
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4:33 - 4:35And when we look, we find some amazing things.
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4:35 - 4:38All the way down -- we call it "the mid-water" from the top
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4:38 - 4:40of the ocean down to the bottom -- we find life.
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4:40 - 4:42Whenever we stop and look we find life.
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4:42 - 4:44I am going to show you some jellies here because
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4:44 - 4:46they're absolutely some of the coolest creatures on Earth.
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4:46 - 4:49Look at that thing just flailing his arms around.
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4:49 - 4:51That's like a little lobster.
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4:51 - 4:54That one is like all these animals with their mouths hooked together.
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4:54 - 4:55They're colonial animals.
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4:55 - 4:58Some animals are tiny, some can be longer than this stage.
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4:58 - 5:01Just amazing animals and you can't collect them with a net.
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5:01 - 5:04We have to go there with our cameras and take a look at them.
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5:04 - 5:06So every time we go, new species of life.
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5:06 - 5:08The ocean is full of life.
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5:08 - 5:10And yet the deepest part of the ocean --
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5:10 - 5:12when we go to that mountain range, we find hot springs.
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5:12 - 5:15Now we were sure, because this is poisonous water,
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5:15 - 5:18because it's so deep that it will crush the Titanic
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5:18 - 5:20the same way you crush an empty cup inside your hand.
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5:20 - 5:22We were sure there would be no life there at all.
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5:22 - 5:26Instead we find more life and diversity and density
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5:26 - 5:27than the tropical rainforest.
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5:27 - 5:31So, in one instance, in one peek out the window of the sub,
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5:31 - 5:33we discover something that revolutionizes the way
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5:33 - 5:35we think about life on Earth, and that is
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5:35 - 5:38you don't always have to have sunlight to get life going.
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5:38 - 5:41There's big animals down there too -- some that look familiar.
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5:41 - 5:44That guy's called Dumbo. I love him. Dumbo's great.
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5:44 - 5:47This guy, oh man I wish I had more footage of this.
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5:47 - 5:50We're trying to get an expedition together to go look at this
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5:50 - 5:52and maybe in a year we'll have that.
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5:52 - 5:54Go online and look.
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5:54 - 5:56Vampyroteuthisinfornalis. The Vampire Squid.
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5:56 - 5:58Incredibly cool.
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5:58 - 6:00In the darkness of the deep sea he's got glowing tentacles,
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6:00 - 6:04so if I'm coming at you like him, I put my arms out in the the darkness
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6:04 - 6:06so all you see are these little glowing things over here.
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6:06 - 6:08In the meantime, I'm coming at you.
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6:08 - 6:10When he wants to escape, he's got these glowing pods
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6:10 - 6:12on his butt that look like eyes.
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6:12 - 6:14He's got glowing eyes on his butt. How cool is that?
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6:14 - 6:16It is just an amazing, amazing animal. (Laughter)
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6:16 - 6:19Vampire squid, when it gets protective,
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6:19 - 6:21it pulls this black cape over its whole body,
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6:21 - 6:24curls up into a ball. Outrageous animal.
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6:24 - 6:28This ship, "the ship of dreams" -- a hundred years ago
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6:28 - 6:31this coming April, this ship was supposed to show up in New York.
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6:31 - 6:34it's the Titanic and I co-led an expedition out there last year.
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6:34 - 6:36We are learning so much about that ship.
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6:36 - 6:39Titanic is an interesting place for biology
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6:39 - 6:42because animals are moving in to live on the Titanic.
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6:42 - 6:44Microbes are actually eating the hull of Titanic.
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6:44 - 6:47That is where Jack was king of the world right there on the bow of Titanic.
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6:47 - 6:51So, we're doing real good and what's exciting me is that
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6:51 - 6:54someday we're making a virtual Titanic so you can sit there at home
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6:54 - 6:57with your joystick and your headset on,
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6:57 - 6:59and you can actually explore Titanic for yourself.
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6:59 - 7:01That's what we want to do --
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7:01 - 7:03make these virtual worlds so it's not Dave Gallo
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7:03 - 7:05or someone else exploring the world; it's you.
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7:05 - 7:07You explore it for yourself.
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7:07 - 7:08So here's the bottom line.
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7:08 - 7:11The oceans are unexplored
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7:11 - 7:14and I can't begin to tell you how important that is
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7:14 - 7:16because they're important to us.
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7:16 - 7:18Seven billion people live on this planet
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7:18 - 7:21and all of us are impacted by the sea because the oceans
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7:21 - 7:25control the air you breathe, the water you drink,
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7:25 - 7:26the food you eat.
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7:26 - 7:28All those are controlled in someway by the ocean
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7:28 - 7:31and this is a thing that we haven't even explored --
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7:31 - 7:32five percent.
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7:32 - 7:34The thing I want to leave you with is
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7:34 - 7:36in that 5 percent I showed you some cool stuff.
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7:36 - 7:38There's a lot more cool stuff every dive we go out on
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7:38 - 7:42in the ocean, we find something new about the sea.
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7:42 - 7:44So what's in that other 95 percent?
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7:44 - 7:46Did we get the exciting stuff or is there more out there?
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7:46 - 7:50And I am here to tell you that the ocean is full of surprises.
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7:50 - 7:52There's a quote I love by Marcel Proust:
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7:52 - 7:55"The true voyage of exploration is not so much in seeking new landscapes,"
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7:55 - 7:56which we do,
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7:56 - 7:57"but in having new eyes."
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7:57 - 8:00And so I hope today by showing you some of this,
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8:00 - 8:02it's given you some new eyes about this planet,
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8:02 - 8:05and for the first time I want you to think about it differently.
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8:05 - 8:07Thank you very much. Thank you.
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8:07 - 8:09(Applause)
- Title:
- Deep ocean mysteries and wonders - David Gallo
- Speaker:
- David Gallo
- Description:
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In the deepest, darkest parts of the oceans are ecosystems with more diversity than a tropical rainforest. Taking us on a voyage into the ocean -- from the deepest trenches to the remains of the Titanic -- marine biologist David Gallo explores the wonder and beauty of marine life.
- Video Language:
- English
- Team:
- closed TED
- Project:
- TED-Ed
- Duration:
- 08:28
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Krystian Aparta
The English transcript was updated on 4/28/2016.