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(Airs Sunday, May 31) About 8,000 years ago, the relationship between cows and man began with the revolutionary advent of domestication in Mesopotamia, the Indus River Valley, and Africa.
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Molecular biologist Peter Savolainen of the Royal Institute of Technology in Stockholm, Sweden, and his colleagues have studied the origins of domestic dogs using hair samples and mitochondrial DNA.
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Traditionally, experts studying the evolution of dogs believed that domestication was a conscious effort of humans. Biologist Raymond Coppinger disputes this theory.
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