Part 3 -- The Waning
Chapters 1 through 4. Wahb reaches full maturity, with a vast range, gained by brute strength. Wahb is a gentleman at Yellowstone Park. Wahb is misled. And the story ends as stories end. Not with a bang.
Part 2 -- The Days of His Strength
Chapters 4 and 5. Wahb meets some human "Grizzlies." And he starts learning a few things about being an old grizzly.