1. Yellowstone National Park Guide to Life in Extreme Heat

    Chapter 4 of the Yellowstone Resources and Issues Guide, called Life in Extreme Heat, describes thermophiles, their habitats in the Park, and their relationship to both the history of life on Earth, and the search for life elsewhere. The Guide is used to train Park naturalists and rangers, and it can also serve as a valuable resource when teaching about extremophiles and astrobiology in the classroom. Chapter 4 can be downloaded from this website.