Horse Racing's Hapsburgs Run for the Roses

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Native Dancer failed to win the Kentucky Derby in 1953, but his bloodline is now found in 75% of all thoroughbred horses. The last 13 Kentucky Derby winners were his descendents, and in tomorrow's race all 20 of the entrants are related to him.  But there's a tragic flaw in the gene pool. That raises some disturbing questions, according to Jon Weinbach of the Wall Street Journal.




Warren Olney