Frank C Craighead, Jr.

Dr Frank Craighead, Jr., was one of America's most distinguished field biologists, and he studied the plants and animals of the Greatter Yellowstone Ecosystem for more than forty-five years. Best known for his pioneering grizzly bear research with his twin brother, John, Dr. Craighead is also the author of" Track of the Grizzly and co-author of "A Field Guide to Rocky Mountain Wildflowers.

Dr Frank Craighead, Jr., was one of America's most distinguished field biologists, and he studied the plants and animals of the Greatter Yellowstone Ecosystem for more than forty-five years. Best known for his pioneering grizzly bear research with his twin brother, John, Dr. Craighead is also the author of" Track of the Grizzly and co-author of "A Field Guide to Rocky Mountain Wildflowers. See less