After years of trial and error, scientists have finally done something incredible: They have successfully grown human stem cells in a pig embryo. Why would anyone do this? Turns out, many ...

A group led by scientists at the Salk Institute for Biological Studies has taken the first big step toward making this a reality: today (January 26) in Cell, they report having grown the first ...

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Two milestone surgeries transplanting pig organs into human patients have shone a light on xenotransplantation But the practice raises ethical concerns, including possible virus transmission, which ...

Researchers have previously created human-animal embryos, such as sheep and pig embryos with human cells, but those pregnancies were terminated after a few days or weeks. This experiment aims to ...

Gene-edited pig livers, synthetic embryos, and 3D-printed tissue implants… the world of organ transplantation is becoming increasingly bizarre as scientists explore high-tech ways to keep people ...