Zebrafish embryo at 80% epiboly. The initial frame shows the junction of the enveloping layer with the yolk cell. The next frame is at a focal plane deeper within the embryo. The blastoderm margin is ...

Four cell stage zebrafish embryo, stained with 100 micromolar Bodipy 505/515. In the upper portion of the image, the yolk cell contains large spherical yolk platelets. The blastomeres undergoing merob...