Baboons can stand in for humans during cross-species transplantation studies. Now, for the first time, researchers have kept baboons alive and healthy for up to six months on transplanted pig hearts. Credit: Paul A. Sounders ========================================================================= In four adjacent enclosures transplantation researcher Bruno Reichart kept four happy baboons. “They can hop around, eat, drink and they are enjoying life,” he says. “They watch TV—their favorite is the cartoon with the chipmunk.” Most importantly, he says, they were healthy and normal—which is astonishing, given the fact that the hearts beating life in their chests were anything but normal for a baboon....