They're semi-custom organs — "we're growing these pigs to the size of the recipient,'' Ayares noted — that won't show the wear-and ... pathogen-free facility. Inside the 77,000-square-foot ...

The 26-storey building that resembles a concrete housing block towers above the rural village and is home to millions of pigs being raised for slaughter. Horrifying images from inside show rows ...

They have successfully grown human stem cells in a pig embryo. Why would anyone do this? Turns out, many scientists have been working on growing the organs of one animal inside of a different type ...