But you go back to the same vent eight years later and it can be completely dead.

This is what's called a hydrothermal vent.

And this vent fluid is about 600 or 700 degrees F.

And there's a whole new hydrothermal vent community that has been formed.

Here's a tiny, little vent that's come out of the side of that pillar.

There's a funny kind of hot plate here, with vent water coming out of it.

We decided that I can't put a do not enter sign next to the vent.

There are a number of groups that are proposing that life evolved at these vent sites.

Behold, my breast is as wine which has no vent like new wineskins it is ready to burst.

Behold, my breast is as wine which has no vent like new wineskins it is ready to burst.

Behold, my belly is as wine which hath no vent it is ready to burst like new bottles.

Behold, my belly is as wine which hath no vent it is ready to burst like new bottles.

You might film this unbelievable hydrothermal vent, which you think at the time has to be on another planet.

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

The vent community animals can't really do much about the life and death that's going on where they live, but up here we can.

And that ephemeral nature of the hydrothermal vent community isn't really different from some of the areas that I've seen in 35 years of traveling around, making films.

Although the vent sites are short lived an individual site may last only 10 years or so as an ecosystem they've been stable for millions well, billions of years.

The young thugs who have attacked synagogues come mostly from the ranks of the unemployed and frustrated. They vent their rage at a system that does not integrate them.

Again, discovered by accident. Just two years ago working off Santorini, where people are sunning themselves on the beach, unbeknownst to them in the caldera nearby, we found phenomenal hydrothermal vent systems and more life systems.

You go to the future back, back, back, back, like that.

Never go back. Never go back.

Never look back. Never look back.

OK, OK, back to the corner, back to the corner, back to the corner.

And like airport traffic control, as they start to go past us they're called back and they're called back and back and back.

Back into the room, we say, Hi, we're back.

Here's nylon going back to caprolactam back to carpet.

Come on. Don't run away. Come back. Come back.

Handing out aid, shooting back, handing out aid, shooting back.

Yeah, yeah, back to the corner, back to the corner.

But Darwin's dangerous idea is coming back. It's coming back.

And yet, even as nationalistic emotions were suppressed in polite society all over Europe, the soccer stadiums remained stubbornly in the pre WWII world. Just as killing continues to be celebrated in ritualized form in Spanish bull rings, illicit tribal feelings are given full vent in the soccer arenas.

Back

I wanted my old life back. I wanted my body back.

So now back to the cooking question and back to the design.

And I came back afterward on the sled of the helicopter back.

It's now back there. They come out, it's time to come back.

Thought he could turn back the waves couldn't turn back the waves.

They just move back to the Mid East and those come back.

and when they went back to their families, they went back jesting,

and when they went back to their families, they went back jesting,

Back Up

Cuba s Back

Look back!

I'm back.

Hurry back.