Morula complementation restores male germline in

Summary: Farmers need faster ways to breed strong, healthy farm animals to keep up with a changing environment. A new science trick helps speed this up! Scientists took a sterile sheep embryo (one that cannot have babies) and mixed it with a healthy donor embryo. This created a "chimera" sheep. When this sheep grew up, it only passed on the healthy donor's genes. This amazing breakthrough means we can quickly breed the best sheep to provide food for the future!