For those Rhodesian Ridgeback fans, who have wondered why a Ridgeback is indeed called a Ridgeback, one has to look at the cause of the ridge on their backs to get the real answers.

Taking the inititative to map the hair ridge trait in Rhodesian ridgebacks, scientists identified a segment of DNA that was found in Ridgebacks and the analysis revealed the precise genetic cause of ridges in this awesome African dog. A certain region contained three genes which were abnormally duplicated. These three genes are present in excess copies. When the genes are present in single copies, no ridge occurs - as in "normal dogs".
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