To be with another scientist and make a discovery and share that with a global audience, or working with bear biologists in Alaska, by helicopter - [it's] really what I've given my whole life to. And I get to do that just about every week.

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

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

Today, I’m a conservationist because I believe that my species doesn’t have the right or option to determine the fate of other species, even ones that inspire fear in us.

I am really sobered by what's happening to ecosystems around our planet and to the wildlife that is to be found there.

We live in uncertain times when it comes to the future of life on Earth.

Running is my addiction. It's always present. I'm constantly thinking about my next run.