Pretty girls!

Or the blowfish.

The blowfish is like the Incredible Hulk.

And he caught a swellfish. A great big puffer, too.

I'm going to draw this blowfish uninflated.

Animals like the Ganges river dolphin which is just down to a few left, and it is also critically endangered.

You see a dolphin here, and there's a dolphin, and there's a dolphin.

And lots of generations, lots of tweaking and torquing, and we turn our puffer into the Mola.

When a male dolphin leaves Mom, it will often join up with another male and form an alliance, which may last for decades.

They appeared shortly after the dinosaurs disappeared, 65 million years ago, at a time when whales still had legs, and they come from a rebellious little puffer fish faction oblige me a little Kipling esque storytelling here.

Pacific Time north Yukon

Pacific Time south Yukon

It's obvious that most of the things we think about that have lost their body hair, mammals without body hair, are aquatic ones, like the dugong, the walrus, the dolphin, the hippopotamus, the manatee.

Now, a dolphin, mother dolphin, any dolphin there's only one way that a PCB can get out of a dolphin.

Some of them were dolphin liver. Some of them were dolphin blubber.

And the water flows through the city with time.

Eastern Time Pangnirtung, Nunavut

And at this age, my personal idol was Flipper the dolphin.

In normal life for mother and calf dolphin, they'll often drift apart or swim apart if Mom is chasing a fish, and when they separate they have to get back together again.

I was out at the Blackwater. It's near time for hunting.

This is one of the last repositories of the Ganges river dolphin, various species of turtles, thousands of migratory birds, and fishing is causing problems like this.

At the same time, the Tennessee Valley Authority had to buy up all the land along the shore of the river and all the islands in the course of the river.

Central Time Rainy River Fort Frances, Ontario

(Música) John Norquist

The death rate in these dolphins, for the first calf born of every female dolphin, is 60 to 80 percent.

A dolphin is a mammal.

Well, in a place like Sarasota, Florida, the average interval between times that a boat is passing within a hundred meters of a dolphin group is six minutes.

So he moved away from it, turned around a few minutes later, it was right next to the side of the boat again.

Some dolphins come playing near the boat.

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

Those females, they're not trying to.

A dolphin is a kind of mammal.

She's the guinea pig of the family.

By contrast, the signature whistle which dolphins use to stay in touch, each individual here has a radically different call.

The dolphin is a very intelligent animal.

I guess you can't hold back time, any more than you can a river.

Have any of you here seen the Nile?

It oscillates its tail up and down like a dolphin.

That's a dolphin tail there, guys.

Dolphins and toothed whales use echolocation.

Dolphins, pretty big brains, play a lot.

Of course evolution is somewhat random, and you know, about 55 million years ago there was this rebellious little puffer fish faction that said, oh, the heck with the coral reefs we're going to head to the high seas.

Juveniles a huge load.

The Dolphin.

And hopefully in the future we'll be able to gain some deeper understanding of how they communicate.