Life At High Temperatures Author:Thomas D. Brock The Yellowstone National Park hot springs and geysers and their colorful bacterial life as well as other associated life and features. Many color and black/white photos plus scientific diagrams and charts of temperature, pH, ecosystem relations, etc. A book for adults with photos of elk at geysers in winter,a spider at hot spring's edge, bison, ... more »bacteria,etc which children would like.« less