![](https://media.nature.com/lw767/magazine-assets/d41586-023-03473-w/d41586-023-03473-w_26277668.jpg)
This hybrid child monkey is product of cells from two embryos
A chimaeric toddler monkey has a tinge of inexperienced in its face and arms, marking tissue derived from embryonic stem cells that have been injected right into a recipient embryo.Credit score: Cao