Micro photographs are used to show the first stages of the gestation of the ovum. The process of segmentation is demonstrated on the ovum of an axolotl. The fertilised ovum is divided into two daughter cells. There is some time lapse footage of two cells forming. A further division produces four cells - there is time lapse footage of four cells forming, then eight cells forming, then multiple cells forming into large bunch of cells. By continued division a solid cluster of cells is formed, called the morula. Each cell division is preceded by a corresponding division of the nuclei. In the interior of the morula the germinal vesicle is formed. (This cannot be seen in the picture) There is a time lapse shot of the morula and continued cell division. At a certain point on the outer surface a narrow canal is created by invagination of the germinal vesicle (gastrolation). Time lapse footage shows slight chances on the surface of the blastocyst.