{ "item_title" : "The Material Basis of Evolution", "item_author" : [" Richard Benedict Goldschmidt", "Stephen Jay Gould "], "item_description" : "In this book, Goldschmidt inquires into the types of hereditary differences that produce new species. Goldschmidt used a wide range of research to formulate his own picture of evolution. Contrary to near-unanimity among scientists, he insisted that the neo-Darwinian theory of micromutations applied only within species and was no longer tenable as a general theory of evolution. Instead, Goldschmidt claimed, macroevolution resulted from larger jumps in genotype - across bridgeless gaps - related either to systemic mutations or to mutations affecting early development.", "item_img_path" : "https://covers1.booksamillion.com/covers/bam/0/30/002/823/0300028237_b.jpg", "price_data" : { "retail_price" : "59.00", "online_price" : "59.00", "our_price" : "59.00", "club_price" : "59.00", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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