This is a volcanic ridge.

But 10 miles down the ridge...

The climbers got on the southeast ridge.

Is this the bus for Park Ridge?

We began to introduce that in our explorations, and we continued to make phenomenal discoveries with our new robotic technologies. Again, looking for something else, moving from one part of the mid ocean ridge to another.

And there were climbers on that summit ridge.

This is the view looking at the southeast ridge.

This is a view taken along the summit ridge.

39 percent of homes on Pine Ridge have no electricity.

We worry about cocaine coming from the Andean Ridge north.

OK, this is a view taken on the summit ridge itself.

The mid ocean ridge runs around like the seam on a baseball.

This is all you've got. You're very exposed on the summit ridge.

Unemployment on the Pine Ridge Indian Reservation fluctuates between 85 and 90 percent.

This is what a real one looks like, on the Juan de Fuca Ridge.

We're going to look at the mid ocean ridge, a 40,000 mile long mountain range.

Both Denmark and Russia have been devoting significant resources to exploring the Lomonosov Ridge. Denmark has hired Swedish icebreakers for repeated expeditions, and Russia has been deploying special submarines to obtain samples from the ridge and the ocean floor.

Her name is Pam Moran in Albemarle County, Virginia, the foothills of the Blue Ridge Mountains.

The tuberculosis rate on Pine Ridge is approximately eight times higher than the U.S. national average.

Because it's along the axis of the mid ocean ridge where the great crustal plates are separating.

What looks like a cloud behind the summit ridge is actually snow being blown off the summit.

The mid ocean ridge is a huge mountain range, 40,000 miles long, snaking around the entire globe.

How to assess countries claims to Arctic territory hinges on the status of the Lomonosov Ridge, a vast formation that rises from the sea floor and stretches 1,800 kilometers from Greenland to the East Siberian continental shelf. Everyone agrees that it is a ridge.

We needed to see skin moving over muscle moving over bone.

And the climbers up on the ridge were that much higher, 2,000 feet higher, and completely exposed to the elements.

We are moving to cities. We are moving up in the world.

Moving Pictures

So let me show you the scene, and then I basically used the trick that was identified by Sergei Eisenstein, which is, if you have a camera that's moving with a moving object, what is not moving appears to be moving, and what is moving appears to be stopped, so what you're actually seeing now is the train is not moving at all, and what is actually moving is the floor.

Todd and Pete got up to the summit ridge, up in here, and it was a scene of complete chaos up there.

The big one is moving very slowly, and the small one is moving fast.

So, here you can see her moving her eyes around, moving her mouth around.

It stopped moving.

So, moving onward.

But moving on.

Anyway, moving along.

And they were moving and grinding and moving their arms up and down each other.

The Pine Ridge Reservation, the subject of today's slide show, is located about 75 miles southeast of the Black Hills in South Dakota.

And this kind of life and death of hydrothermal vent communities is going on every 30 or 40 years all along the ridge.

They're just not moving.

Draw preview while moving

It's baleen. Moving on.

It's also moving vertically.

Russia s Moving Presidential Target

And those moving gently.

And those moving gently.