Scientists injected dozens of human stem cells into developing monkey embryos, and the resulting hybrids survived for up to 20 days in lab dishes. These human-monkey embryos could someday serve as ...

Our understanding of the human body has sky-rocketed in recent decades, opening doors for everything from brain-controlled prosthetics to world-changing mRNA vaccines. But there are still some secrets ...

In a ground-breaking experiment, researchers have successfully created the first human-monkey chimera. The work, published in the journal Cell, describes the the first embryo containing both human and ...