The natural resources we've depended on, if the places where they exist are not stable, our own livelihood and our health is put at risk.

I love people who have died trying to save wildlife. When I see that passion, that gives me hope.

I'm really worried about what the world is going to be like when my daughters are young women, [when] they are young leaders or mothers or businesspeople - whatever they're going to be. I'm afraid they're going to have a less healthy and less biologically rich planet.

We know that when push comes to shove, [we can] drive ourselves to save our planet.

It's the best - combining the mediums of television, documentary, and books, to give you this transmedia experience for kids, for families, and for teachers.

Whether it's exploring the woods around where I grew up, or even today exploring the coastal habitats and environments where I live in New England, or in a remote wilderness we're featuring in one of my series - I love to be in the field and I love to explore.

I think a human animal is far more wild and unpredictable and dangerous and destructive than any other animal.