The most advanced lab-made human embryo models look like the real thing — they resemble, though don't perfectly replicate, natural embryos about 14 days into development.

Our stem cell–derived human embryo model offers an ethical and accessible way of peering into this box. It closely mimics the development of a real human embryo, particularly the emergence of ...

Oct. 29, 2021 — The relatively narrow human birth canal presumably evolved as a 'compromise' between its abilities for parturition, ... How Sound Reshapes Your Brain Networks in Real Time.