explore an epic nature conservation project that encompasses the great North American Rockies, and we examine the infinite delicate relationships between the species that inhabit them. Mary Ellen Hannibal is a Bay Area writer and editor focusing on science and culture. Hannibal’s book The Spine of the Continent is about a social, geographical, and scientific effort to save nature along the Rocky Mountains. A “thoroughly satisfying gem,” The Spine of the Continent chronicles landscapes, people, critters, and issues along the Spine. A former book review and travel editor, Hannibal is Chair of the California Book Awards. She was a 2011 Alicia Patterson Foundation Fellow. She is a recipient of the National Society of Science Writer’s Science and Society Award 2012 and Stanford University’s Knight-Risser Prize for Western Environmental Journalism.