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The breeding programs of the last half-century are, in some ways, a tremendous scientific accomplishment. For example, the United States pumped out 33 times more pounds of turkey at a lower cost to consumers in 2007 than our farmers did in 1929. Turkeys more than doubled in size in that time from an average of 13 pounds to an average of 29 pounds, and as seen in the chart above, show no signs of stopping. If the trend continues, we could see an average turkey size of 40 pounds by 2020. According to the National Wild Turkey Federation, the largest wild turkey on record is 38 pounds. (via Give Thanks? Science Supersized Your Turkey Dinner | Wired Science from Wired.com
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