Ceiridwen Terrill is an associate professor of science writing and environmental journalism at Concordia University in Portland, Oregon. Her essays have appeared in Oxford American and Isotope, as well as the anthology What Wildness Is This: Women Write About the Southwest. Her first book Unnatural Landscapes: Tracking Invasive Species was published in 2007. To see photos and video from Part Wild and to learn more about her work, visit MyUrbanWild.com. Follow her on Twitter@myurbanwild.