Brothers John and Frank Craighill knew there was a problem when they saw fewer and fewer grizzly bears at Yellowstone National Park. But how did grizzlies--with a population size once as big as 100,000--wind up on the endangered species list? Follow along in this graphic adventure based on a true story of how the Craighill brothers learned all they could about these beautiful bears in order to save the silvertip. Then, learn more about grizzlies and...