On a farm in the southern US state of Virginia, David Ayares and his research teams are breeding genetically modified pigs to transplant their organs into human patients.

German scientists plan to clone and then breed this year genetically modified pigs to serve as heart donors for humans, based on a simpler version of a U.S.-engineered animal used last month in ...

Saratoga farm helps breed future horse racing champions Sugar Plum Farms in Saratoga is a breeding farm about a mile from the track.