The Host

Ed Arnett


Ed has been a professional wildlife biologist for more than 25 years and has worked on wildlife and forestry, wind energy, oil and gas development and conservation policy issues for federal agencies, private industry, academia and non-governmental conservation organizations. He has worked with numerous species of wildlife and has studied bats since 1994, including research on these unique mammals for his doctorate degree. He is a certified wildlife biologist through The Wildlife Society and has published several scientific articles and book chapters from his work on wind energy-wildlife impacts, forest songbirds, bighorn sheep, bald eagles, and bats. Ed also is an adjunct professor at Texas Tech University and an affiliate faculty member at Colorado State University. He is an avid outdoorsman, sportsman, and conservationist dedicated to fish and wildlife management, conservation policy and education.

Production Team

Gary Streiker


After a first career as an international lawyer, Gary turned to television journalism and worked for nearly 20 years as CNN’s Nairobi bureau chief and the network’s global environment correspondent. In his “Our Planet” series, he covered stories ranging from the bushmeat crisis in central Africa to the destruction of tropical forests in Indonesia, Peru and Papua New Guinea. His work was awarded the National Press Club’s top prize for environmental reporting.

Marsha Walton


Marsha is a science, technology and environment writer and producer. She worked at CNN and for 16 years, covering the Mars rover landings and numerous space shuttle missions, hurricanes, tornadoes, and climate change, and wrote and produced hundreds of stories for Working with correspondent Miles O’Brien, their 2008 documentary “Broken Government: Scorched Earth” won a 2008 National Headliner Award for environmental reporting. She currently produces segments for the National Science Foundation.

Roger Herr


Roger has worked in broadcast television since 1982, starting as a videotape editor and news cameraman for local stations in North Carolina and Georgia. He later became a director of photography for CNN’s long form unit (Special Reports and CNN Presents) before he went freelance in 2001. He specializes as a DP for independent productions and network news magazine programs. His numerous awards include a Peabody and a National Emmy for cinematography.

Dave Timko


Dave Timko is an award-winning documentary filmmaker with nearly three decades of journalism experience. In his combined roles of producer, shooter and editor, Timko co-produced over 40 documentaries for CNN, specializing in first-person narratives of the most relevant stories of our time. He has been recognized for his work with 5 National Emmy Awards, and has been a regular contributor to This American Land since 2012.