Scientists have captured the first real-time images of a human embryo embedding itself into a lab-grown uterine lining. Instead of gently attaching, the embryo was seen forcefully burrowing into the tissue and reshaping its surroundings. This surprising behavior, unique compared to mouse embryos, highlights how human implantation is a more dynamic and invasive process. The discovery could improve understanding of early pregnancy, fertility treatments, and why implantation sometimes fails. It also shows the power of synthetic models in studying human development ethically and in detail. Read more
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