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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Pianka, Eric R. (Eric Rodger), - Giles, William F
    Type: Article
    In: The Western Australian Naturalist
    Volume: 15
    Issue: 2
    Date: 1982-01-31
    Page Range: 44--49
    Publication Info: Nedlands, W.A, Western Australian Naturalists' Club, 1947