Describes how the work of butterflies helped the dinosaurs survive in Earth's prehistoric era, and offers theories on why they survived as the dinosaurs became extinct. Additional Details \N BOOK TYPE : EN BRAND : Barner, Bob GRADE LEVEL : PRESCHOOL LANGUAGE : ENGLISH NUMBER OF PAGES : 24 PUBLISH DATE : 2009/04/01 PUBLISHER IMPRINT CODE : CHRNJ PUBLISHER NAME : CHRONICLE BOOKS LLC RETURNS ACCEPTED? : YES
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