A new study highlights both the promise and the limitations of gene editing, as a highly lethal form of avian influenza continues to spread around the world.
Working on a remote island, scientists think they can use genetic engineering to block a malaria-carrying species of mosquito from spreading the disease — and do it in just a few months. But governments are wary.
Dr. Wilmut led a team of scientists in Scotland that, in 1996, cloned a mammal for the first time, a feat of genetic engineering that shocked the world.