The deeps cover them. They went down into the depths like a stone.

The depths have covered them they sank into the bottom as a stone.

lt lt A Song of Ascents. gt gt Out of the depths I have cried to you, Yahweh.

Out of the depths have I cried unto thee, O LORD.

They mount up to the sky they go down again to the depths. Their soul melts away because of trouble.

They mount up to the heaven, they go down again to the depths their soul is melted because of trouble.

Thank you so much. I'm going to try to take you on a journey of the underwater acoustic world of whales and dolphins.

Narrator In front of the sub, a mess screen will come into contact with the soft bodied creatures of the deep sea.

You divided the sea before them, so that they went through the midst of the sea on the dry land and you cast their pursuers into the depths, as a stone into the mighty waters.

And thou didst divide the sea before them, so that they went through the midst of the sea on the dry land and their persecutors thou threwest into the deeps, as a stone into the mighty waters.

Since my my first dive in a deep diving submersible, when I went down and turned out the lights and saw the fireworks displays, I've been a bioluminescence junky.

And then finally, I want to show you some responses that we recorded with the world's first deep sea webcam, which we had installed in Monterey Canyon last year.

For example, these fish predate on sea urchins, and when the fish were all gone, all anyone ever saw underwater was just acres and acres of sea urchins.

It had deep underwater microphones, or hydrophones, cabled to shore, all wired back to a central place that could listen to sounds over the whole North Atlantic.

But let's kind of look at these stages again from the standpoint of connections to possibly a deeper level all in my quest for answering the question, What is it about bread that's so special?

Peter Tyack of Woods Hole talks about a hidden wonder of the sea underwater sound. Onstage at Mission Blue, he explains the amazing ways whales use sound and song to communicate across hundreds of miles of ocean.

In the deep, dark ocean, many sea creatures make their own light for hunting, mating and self defense. Bioluminescence expert Edith Widder was one of the first to film this glimmering world. At TED2011, she brings some of her glowing friends onstage, and shows more astonishing footage of glowing undersea life.