(Laughter)

led to this corruption.

And it's a bleak future for them.

A dolphin.

You could play it on the banks of the Ganges that's as clean as the Ganges has been for a long time.

Dolphin.

The holy man tiptoed his way across the Ganges.

Now this is some video of a typical dolphin fight.

your dolphin, Pam.

Your dolphin. She's tapping out.

And two boats When the second boat was added, what happened was that some of the dolphins

Papa goes to the sacred sewer

The dolphins eat the fish that have PCBs from the plankton, and those PCBs, being fat soluble, accumulate in these dolphins.

That's the rope whistle.

But this is the moment where everything becomes possible.

Except stinkin' dolphins.

A dolphin is a mammal.

In mother's milk.

You know, he had hands like stone.

Another well studied sound are echolocation clicks.

Okay, so here's a second toy in the water.

So we started up this interspecies Internet project.

Tom drew a picture of a dolphin.

And in some parts of the world, they use tools,

And by about the age of 15, they're fully spotted black and white.

A dolphin is a kind of mammal.

Dolphins are curious.

(Laughter)

She's 35 years old in this shot, but dolphins can actually live into their early 50s.

But we can see the haze from fires and so forth in the Ganges valley down below in India.

This is a million people gathering on the banks of the Ganges in 2001, perhaps the largest single gathering of human beings ever, as seen from satellite photograph.

But some of them were not whale meat at all.

But there are some exceptions.

This dolphin has self awareness.

Better still, you could crossbreed them with dolphins and have leaping mutton!

I know you mentioned that a keyboard is a really key part of this.

It may seem counterintuitive, but it accounts for little streams all over the planet.

And this is the best studied sound, because it's easy to measure, really, and you'd find this whistle when mothers and calves are reuniting, for example.

Even though they were labeled whale meat, they were dolphin meat.

Watch this.

So decades ago, not years ago,

This is a bad situation.

It's a young dolphin named Bayley.

When we were rehearsing last night, he had fun watching the elephants.

What we hope will happen is that the dolphin mimics the whistle, and if Diver A has the sargassum, if that's the sound that was played and requested, then the diver will give the sargassum to the requesting dolphin and they'll swim away happily into the sunset playing sargassum for forever.