New Hampshire officials said Sunday the final victim in what's known as the Bear Brook murders has been identified, ending a decades-long search to identify all four victims. The victim, previously known as the "middle child,

More than 100,000 people are waiting for organ transplants in the United States, and most need a kidney. Now, after the latest successful pig kidney transplant, there's new hope.

Scientists continue to make progress with research on how well pig organs might perform in humans, and now they’re ready for the next step: larger-scale clinical trials.