Ethics of Dog Cloning Successes aside, Hwang's cloning endeavors still raise ethical concerns, Woestendiek said. First, the massive expenditure of money and scientific resources involved in cloning may look irresponsible when there are so many dogs languishing in shelters.
"Why go to all that expense if there are dogs that need homes?" Woestendiek asked. In the United States alone, 6 million to 8 million cats and dogs enter shelters each year, according to the Humane Society of the United States.
And, in most cases, it's pretty easy to find a new dog that looks like the old one, Woestendiek said. Cloning, after all, can only really replicate looks. The new dog is not, by any means, the "same" pet, and may behave differently, the author said.
"I think that personality is really what most people are looking to clone," Woestendiek noted. "And I don't think personality is clone-able." That's because though the clone should have a complete DNA match with the late dog, personality is the result of genes, upbringing and environment.