NICOLLE FULLER, SAYO STUDIO (1) Embryoid Bodies: In a first example of a human 3D embryo model, researchers grew ESCs on non-adhesive dishes in media without a differentiation inhibitor or growth ...

A study of a simple marine animal suggests that the common ancestor of cnidarians and bilaterians may have had three germ layers instead of two. Nematostella embryos’ two cell layers arise during ...

In the first week, our cells reach their first turning point: They must become either placenta or embryo. Then, in the developing embryo, cells form three primary layers — ectoderm, mesoderm and ...