For a less expensive route that will give you the biomes of North America AND all of the other continents besides, the Complete Set of Control Charts for the Biome Puzzles is just $25.00.
Houses of Wood
by Bonnie Shemie
Echoes of the Elders: The Stories and Paintings of Chief Lelooska
told by Chief Leloosa (on CD), edited by Christine Normandin
"Beaver Face" is on page 32 of the book and track 5 of the CD
a wonderful exploration for this would be to look at abalone shell
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