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Crosby, Alfred W. – 1989
Christopher Columbus crossed the Atlantic in 1492 and opened a period of extensive exchange between the Old and New Worlds. His greatest impact on the New World has been the one to which the least attention has been paid: his biological impact. For millions of years the biotas of the Old and New Worlds developed independently, divergently. The…
Descriptors: Adjustment (to Environment), American Indians, Animals, Diseases
