Reviews The Spine of the Continent: The Most Ambitious Wildlife Conservation Project Ever Undertaken by Mary Ellen Hannibal Share this: Share via email (Opens in new window) Email Click to share on Facebook (Opens in new window) Facebook Click to share on Reddit (Opens in new window) Reddit Click to share on X (Opens in new window) X Click to print (Opens in new window) Print By Science News October 19, 2012 at 11:02 am A journalist travels the length of the Rockies documenting efforts to create a massive wildlife corridor stretching from Canada to Mexico. Lyons Press, 2012, 272 p., $24.95