We need to start looking at having a way of managing the whole ecosystem, because you can't pick away at it piece by piece, you have to truly start being coordinated and managing our resources as a system. We haven't gotten to that point yet.

You use and lose a lot of energy being grumpy.

I try not to see Woody Harrelson because he has become this big movie star, and it grates, so I try and stay away from him.

Looking out at the ocean, it's easy to feel small - and to imagine all your troubles, suddenly insignificant, slipping away. Earth's seven oceans seem vast and impenetrable, but a closer look tells another story.

Sharks are in real trouble, and they need all the help they can get.

I was at our beautiful home in Martha's Vineyard, near Boston, sitting on the porch looking at the ocean when I got a phone called and was asked, 'Would I like to do 'CSI'?' A week later, I'm at a coroner's office in Las Vegas, participating in a quadruple autopsy.