 Scientists grow human muscles and pig embryos for the first time. The authors of the study created human pig chimeras with the hope that this may one day help make muscle transplantation easier. Chimeras are organisms or tissues that contain at least two different sets of DNA. Previous studies had already shown that it's possible to grow human organs and pig embryos, but this study was the first to show that it also could be done with muscle tissue. The researchers made it clear that the human cells used were only located where muscle tissues should be and that they didn't migrate to the brain or reproductive areas of the pig, so there is no reason to worry about human pig hybrids. The researchers also hoped that in the next three to five years it might be possible to start clinical trials of pig grown human tissue transplants to help people who need them. See the full video at youtube.com backslash x10 show