"Wilmut has always been clear about his ethical beliefs and has publicly voiced his approval of 'therapeutic cloning', whilst strongly opposing anyone attempting to clone a human, claiming that they are 'very naïve'. He allays any fears that cloning would produce identical humans and explains that unlike identical twins, clones are derived from different eggs, developed in different uterus and most likely have different mothers. However, his condemnation of human cloning lies in both the process and the overall practical benefits. 'I don't like the idea of copying a person' he explains, 'because I think that each child should be wanted as an individual.' There are also practical considerations, 'we are one of the labs who are trying to clone a pig, with the aim that one day pigs will provide organs for transplantation into human patients - there is a real biological need there. In the process we have probably worked with over four or five thousand embryos without any success. Just where exactly would you get this many human embryos? It is obscene to even think about doing that to people.'"