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

I'm a biologist. At my core, I'm a naturalist.

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.

We are not far away from the point of no return when it comes to life on earth, and we have some radical choices to make.

In my heart, ever since I [was] a little kid, I've been an explorer.

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

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.