For the first time, scientists have created embryos that are a mix of human and monkey cells. The embryos, described Thursday in the journal Cell, were created in part to try to find new ways to ...

Image of the human-monkey embryo; human cells are labelled in red Credit - Weizhi Ji, Kunming University of Science and Technology In a ground-breaking experiment, researchers have successfully ...

Scientists injected human stem cells into macaque embryos into a study on human development. Some of the embryos continued to develop for 20 days, researchers said. But the experiment has sparked an ...

Seven years after the first gene-edited babies were revealed, biotech startup Manhattan Genomics is reviving the idea of ...

NEW YORK -- Scientists in Oregon say they've reached the long-sought goal of cloning monkey embryos and extracting stem cells from them, a potentially major step toward doing the same thing in people.

A team of scientists has created synthetic human embryos from stem cells, without the need for either an egg or sperm — a remarkable breakthrough that raises plenty of thorny ethical questions. While ...