Making the paper: Claudio Stern.

The focuses on a study to examine the movements of single cells in early embryonic development using a recently developed technology. Researchers chose the chick embryos as an animal model. They used the multi-photon microscope, which can penetrate deep into tissues and obtain high-resolution three-dimensional images. To see the movements of individual cells, researchers used single lines to connect groups of three cells into triangles on each video frame. Then compared the movement of triangles in different regions of the embryo.