Embryo Models’ Challenge Legal, Ethical and Biological Concepts.

In April, researchers in China reported that they had initiated pregnancies in monkeys through a procedure seemingly much like in vitro fertilization (IVF), in which embryos created in a dish were implanted in the uteruses of cynomolgus monkeys. There seemed nothing remarkable about that — except that this was not genuine IVF, because the embryos had not been produced by fertilization.

Philip Ball
Quanta 13 June 2023 – Read more