Sharks have been cast as the ultimate villain ever since the movie Jaws.

It was released 50 years ago this summer, telling the story of a man-eating great white shark

terrorizing beachgoers. But the reality is that humans are a bigger threat to sharks than

the other way around.

An endurance swimmer wants to get that message out by swimming around Martha's Vineyard, which is where Jaws was filmed. Here again, Ali Rogan.

Endurance swimmer Louis Pugh is swimming 60 miles around Martha's Vineyard.

I swim for as far as I can each day. We then

mark the position on the map. I go and sleep and then I get back in the next day at exactly the

same spot and carry on. In just a speedo and swim cap, Pew faces wind, rough waters and most

unpredictable of all, sharks in the depths below. But the sharks are the point.

For the past 50 years, it's all been about fear and about the danger of sharks. What I want to do

is I want to try to change the narrative for a new generation and say sharks actually bring life,

they sustain life, they make oceans healthy.

And he says there's no better backdrop for this message than the place where the

Jaws effect was born.

They portrayed sharks in a way that they are villains, they are out to get humans, and we know that they are nothing

of the sort.

And so this is an opportunity to try and tell a new narrative for a new generation.

Globally on average, 274,000 sharks are killed every day.

That's 100 million sharks a year.

It's an ecocide which is taking place right now. It's

completely unsustainable. It's absolute madness. And it's going to lead to a watery deserts.

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