A South Korean company says it has received an order for the world’s first commercial cloning of a pet dog. Seoul-based RNL-Bio says an American woman has asked it to create a clone of her beloved former dead pit bull. The woman, from the western state of California, had her dog’s ear tissue refrigerated before it died a year and a half ago. A team of scientists at Seoul National University will carry out the cloning work, for which RNL-Bio is charging $150,000.