![A human-monkey chimeric blastocyst. Credit: Weizhi Ji/Kunming University of Science and Technology.](https://publisher-publish.s3.eu-central-1.amazonaws.com/pb-ncregister/swp/hv9hms/media/20210420030456_12e7ae5889e0589bacc3cc1a16ead6779b963721c782eb7646b0daef1224f207.jpg)
An article published April 15 in the journal Cell described how scientists took a blastocyst from a macaque and added human cells.
An article published April 15 in the journal Cell described how scientists took a blastocyst from a macaque and added human cells.