Chimera kittens are a single cat that is comprised of two or more different genetically distinct cells that originated from different zygotes. These genetically unique cells merge together into ...

Today, Garry and her husband Dan, a transplant cardiologist, are pioneers in the field of interspecies chimera research, the study of organisms containing cells from two different species. Their team ...

Scientists at Queen Mary University of London and the University of Hong Kong have created a mouse with substituted genes from a single-celled organism known as a choanoflagellate. Scientists ...

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 ...

An international team of researchers has created embryos containing both human and monkey cells, the Spanish newspaper El País reported July 31. The controversial project was conducted in China, ...