Researchers have reported growing hearts containing human cells in pig embryos for the first time. The embryos survived for 21 days, and in that time their tiny hearts started beating. The findings ...

When you lose a baby tooth, an adult one grows in its place. But if you lose an adult tooth, your options are limited to dentures, titanium implants, or a stylish gaping hole. Soon, however, there ...

Part lion, part goat, part serpent, the Chimera was a terrifying, fire-breathing monster capable of decimating cities, according to Greek mythology. Today, the term “chimera” has a much more ...

Like something out of "Repo! The Genetic Opera," scientists have managed to grow human-like teeth in a lab — and implant them inside a miniature pig's mouth, in a harbinger of weird new frontiers for ...

The transplanted portion of the genetically modified pig liver was removed after 38 days, and the patient, who had advanced liver cancer and cirrhosis, died several months later. By Roni Caryn Rabin ...

A look at the human-pig hybrid experiment and its implications.

Like something out of “Repo! The Genetic Opera,” scientists have managed to grow human-like teeth in a lab — and implant them inside a miniature pig’s mouth, in a harbinger of weird new frontiers for ...