Primate Embryos Grown in the Lab for Longer Than Ever Before

November 14, 2019

(Nature) – They are the longest lived primate embryos to thrive outside the body. Two groups working in China have succeeded in growing monkey embryos in a dish for 20 days. The work sheds light on a crucial but little-understood phase of early development, and will probably reignite the debate about how long human embryos should be permitted to develop in the lab.