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.

What drives me is that moment of discovery. I love the unknown.

We live in a time where we have more extinction happening on our planet than since the dinosaurs were wiped out 50 million years ago.

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

When you're in the middle of nowhere, when you're on this tiny little island, probably one of ten people ever to step foot on this island, it's taken you a week to get there by boat - and you step near to an albatross nest. It doesn't even look at you as the enemy. You get this great nature moment. Until you realize the albatross, along with the thousands of other winged albatrosses next to it, has constructed its nest of trash.

Many of the medicines we use today, to fight everything from AIDS to cancer, originate as a toxin in an amphibian skin. When we lose these animals, we lose resources. We lose keystone species in the environments where they live.

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.