. The author Alfred Crosby gives wonderful detail into a realm that is not always explored, the impact, and affect over time of what happened when the Old World and the New World collided. Many of the things Crosby discusses are not often shown in the content of high school history courses, or something thought of as general knowledge. The approach that Crosby takes towards the flora and fauna differences and the affects they had, helped …showed first 75 words of 466 total…

…showed last 75 words of 466 total…the future of this planet. I believe that this is true, I think that it is part of our human nature. I think that to look at our future to change, we must recognize what happened in the past, in order not to make the same mistakes. Who knows, perhaps in the future, a "columbian exchange" might exist with another plant. ------------------------------------------------------------------------ **Bibliography** The Columbain Exchange Biological and Cultural consequnces of 1492 Crosby, Alfred jr. copyright 1972