A stem-cell derived human ... tells me. Embryo research is legally, ethically and technically fraught. But there is now a rapidly developing field mimicking natural embryo development.

Created from stem cells, without eggs, sperm, or a womb, the embryo model had a yolk sac and a proto-placenta, resembling a state that real human embryos reach after approximately 14 days of ...

The Fundamentals of Human Embryology covers embryonic development, with a unique focus on adult anatomy. Its goal is to impart to students a comprehensive overview of how the human embryo forms, not ...