First human-pig embryos have been made in lab, may carve path for transplants It’s a very early step toward the goal of growing organs in animals to transplant into people. Check out this story on lcsun-news.com: http://usat.ly/2k8jdSe This undated photo provided by the Salk Institute on Jan. 24, 2017, shows a 4-week-old pig embryo that had been injected with human stem cells.