Gastrulation is a process common to nearly all metazoan organisms during which an embryo with distinct tissue layers develops out of a seemingly unstructured assembly of cells referred to as ...

Gastrulation is a crucial stage in embryonic ... lapse microscopy analysis of individual cell movements in living chick embryos. The authors labelled ectoderm cells and filmed them shortly after ...

No one would ever confuse a human being with a mouse, a chicken, or an elephant ... have a hard time saying whether an embryo ...