Sox9, a master regulator of cartilage formation, switches its target genes dynamically during embryonic limb development ...

Study finds early-stage ectoderm cells are especially susceptible, raising questions about potential developmental risks ...

After three long essays in the New York Times’s “Embryo Question,” the series ends with a stunning confession of complete indecision about what the human embryo is — aside from the assertion that ...

Postdoctoral researcher Kamal Shokeen at the Albert Einstein College of Medicine studies how a key protein guides retinal ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. What do the earliest stages of a pregnancy look like? Embryonic ...

Two to three weeks after conception, an embryo faces a critical point in its development. In the stage known as gastrulation, the transformation of embryonic cells into specialized cells begins. This ...

Descriptions of the embryo go back at least to the time of Aristotle, but it has only been since the late 19 th century and early 20 th century that advances in experimental approaches allowed ...

Cambridge University researchers developed the world’s first synthetic human embryo models using stem cells but without using an egg or sperm, which has sparked ethical concerns and questions about ...

Successful fertility treatments, including in vitro fertilization (IVF), is often reliant on a clear understanding of developmental stages of human development. Clinicians working with assisted ...

Eating large amounts of ultra-processed food (UPF) is linked not only to reduced fertility in men, but also to slower growth in early embryos, and smaller yolk sacs, which are essential for early ...