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

Here's a dolphin where the fin's been re attached.

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

The silvertips are the one with the white edges on the fin, and there're also gray reef sharks and some hammerheads off in the distance.

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

I was born and raised in Boston myself, and I yield to no one in my passion for codfish. I hate codfish.

Pretty girls!

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.

Here, for over 14 or 15 years, we've actually brought in both bluefin and yellowfin in captivity.

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

the unwieldy beast with two fins.

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

Or the blowfish.

Some dolphins come playing near the boat.

A recent report has found that industrial longline fishing has contributed to the decline of oceanic whitetip and silky shark species by 90 99 percent in the Gulf of Mexico.

Humpback whale has scalloped edges on its flippers.

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.

Humans, without fins 90 meters, 3.5 minutes.

The blowfish is like the Incredible Hulk.

The dolphin is a very intelligent animal.

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

This is the oceanic whitetip shark, an animal that is considered the fourth most dangerous species, if you pay attention to such lists.

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.

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.

So we can save the bluefin tuna.

Juveniles a huge load.

I'm going to draw this blowfish uninflated.

The Dolphin.

Now, finning is the act of taking a shark, cutting the valuable fins off and throwing the live animal back in the water.

He's sort of a Homer Simpson with fins.

Dolphins, pretty big brains, play a lot.

We've actually taken a sliver of the ocean, put it behind glass, and we together have put bluefin tuna and yellowfin tuna on display.

Bluefin are pursued wherever they go there is a gold rush on Earth, and this is a gold rush for bluefin.

He gets finned, and then he gets thrown overboard.

That's the size they have to be to protect the bluefin tuna.

Shark fins are an energy booster.

Baby dolphin and baby llamas. Everybody look.

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