its stores of glucose and amino acids to rid itself of the poison. Since McCandless lived on a diet of rice, lean meat, and wild plants and had less than 10% body fat when he died, Krakauer hypothesized that McCandless was likely unable to fend off the toxins. However, when the Eskimo potatoes from the area around the bus were later tested in a laboratory of the University of Alaska Fairbanks by Dr. Thomas Clausen, toxins were not found. Krakauer later modified his hypothesis, suggesting that mold of the variety Rhizoctonia leguminicola may have caused McCandless's death. Rhizoctonia leguminicola is known to cause digestion problems in livestock, and may have contributed to McCandless's impending starvation. Krakauer hypothesised that the bag in which Chris kept the potato seeds was damp and the seeds thus became moldy. If McCandless had eaten seeds that contained this mold, he could have become sick, and Krakauer suggests that he thus became unable to get out of bed and so starved. His basis for the mold hypothesis is a photograph that shows seeds in a bag. Following chemical analysis of the seeds, Krakauer now believes that the seeds themselves are poisonous. In March 2015, Krakauer co-authored a scientific analysis of the Hedysarum alpinum seeds McCandless ate. The report found relatively high levels of L-canavanine (an antimetabolite toxic to mammals) in the H. alpinum seeds and concluded "it is highly likely that the consumption of H. alpinum seeds contributed to the death of Chris McCandless." Major themes Into the Wild addresses the issues of how to be accepted into society, and how finding oneself sometimes conflicts with being an active member in society. Most critics agree that Chris McCandless left to find some sort of enlightenment. He also tries to find his way in the wild with minimal material possessions, because "it made the journey more enjoyable." His extreme risk-taking was the calling which eventually led to his downfall. McCandless was influenced by transcendentalism and the need to "revolutionize your life and move into an entirely new realm of experience." Adaptations A film adaptation was released in September 2007, directed by Sean Penn and starring Emile Hirsch as McCandless. McCandless's story is also the subject of the documentary by Ron Lamothe named The Call of the Wild (2007). In his study of McCandless's death, Lamothe concludes that McCandless ran out of supplies and game, and starved to