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 ...

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 ...

(CNN) — Scientists based in China have created a monkey chimera with two sets of DNA, experimental work they say could ultimately benefit medical research and the conservation of endangered species.

UK experts have called for public discussion and debate about the ethical and regulatory challenges on human-animal chimeras. Sign up for the top news stories every day to keep you informed with ...

A synthetic embryo can now be constructed from very early pre-embryonic cells – without the need for an egg or sperm. These were initially created in mice. In April, Chinese researchers created ...

America reportedly has moved ahead in a controversial race to tinker with human DNA -- but the scientific feat is shrouded in unanswered questions. The MIT Technology Review published on Wednesday a ...

Add Yahoo as a preferred source to see more of our stories on Google. Photo collage of rhesus monkeys on top of microscope photography of cells. Researchers in China have successfully cloned the first ...