We have white sharks and blue sharks.

Salmon sharks aren't the only sharks we tag.

RP Silvertip sharks they're actually three species of sharks here.

Well one obvious source is dead sharks, Dead sharks washed up.

This is probably the biggest threat to sharks worldwide it is the finning of sharks.

And sharks we had sharks on our early dives, up to 150 sharks at once, which is an indication of a very, very healthy, very strong, system.

And there are sharks.

And because I love sharks I'm somewhat obsessed with sharks I wanted to do another, more celebratory, story about sharks, as a way of talking about the need for shark conservation.

Diver 2 Uh, silvertip sharks.

We tagged 105 sharks last summer.

So we rushed out to Blasket as soon as we heard there were sharks there and managed to find some sharks.

And I was particularly fascinated with sharks.

And keep an eye out for sharks.

You've got more sharks and you've got tigers.

You can see sharks in every single dive.

And sharks used to come into the bay.

We kill about 100 million sharks a year.

Basking sharks are awesome creatures. They are just magnificent.

We're often all frightened of sharks thanks to Jaws.

These are the tuna, the billfish and the sharks.

He was saying to me, Over there you've got sharks.

And sunfish is one of the words for basking sharks.

We also tag makos with our NOAA colleagues, blue sharks.

Sharks are sensitive to electrical impulses as well as sound.

Now when we were out tagging our sharks, this is how we tagged them on the front of a RIB get in there fast occasionally the sharks do react.

Maybe five or six people get killed by sharks every year.

And of course, sharks, fish, are underwater most of the time.

That's banned now, and that'll be good news for the sharks.

There's great concern that basking sharks are depleted all throughout the world.

Greenland sharks are also known as small head sleeping sharks, widely distributed in Greenland and the North Atlantic waters around Iceland. It has the length of 4 to 5 meters in their adult age.

We also see sharks, much more regularly than I would have expected to.

Up there, you have sharks and large fish that live 25, 30 years.

Most of the turtles, sharks, tunas and whales are way down in numbers.

So very simple things like that, we're trying to learn about basking sharks.

Before 2006, we had no idea of the genetic variability of basking sharks.

Now this was into August now, and normally sharks peak at June, July.

Salmon sharks go down to the tropics to pup and come into Monterey.

So sharks aren't quite as dangerous as most people make them out to be.

The importance of basking sharks to the coast communities is recognized through the language.

You can only rarely be in the right place to find sharks into August.

This one was taken at the exact moment I was down there filming those sharks.

Speaking of dinosaurs, sharks are basically the same fish they were 300 million years ago.

And we thought that basking sharks were temperate animals and only lived in our latitude.

And lastly with this story, I also wanted to focus on baby sharks, shark nurseries.

A lot of people are excited when sharks actually went under the Golden Gate Bridge.