Zebrafish embryo at tailbud stage The sequence begins at the level of the axial hypoblast. The hypoblast has separated into paraxial and axial mesoderm. The axial mesoderm (chorda mesoderm) is the pre...

Zebrafish Embryo, from tailbud to 16-hour stage, stained with 100 micromolar Bodipy-Ceramide. Bodipy-Ceramide permeates the enveloping layer epithelium of the embryo, accumulating in the interstitial ...

Zebrafish embryo at 75% epiboly. The view is from the animal pole. The focal plane is deep within the blastoderm. The focal plane changes as the embryo rolls during the sequence. The fluorescent lipid...

Short timelapse movie of prechordal plate, hypoblast, and yolk syncytial layer (YSL) nuclear movements during 80-90% epiboly. The prechordal plate and notochord can be seen as a tighter clump of cells...

Dorsal cell movements during zebrafish gastrulation includes a combination of epiboly, involution, and convergence and extension along the embryonic axis. Note that videos CIL 11818, 11819, and 11820...

Scanning electron micrograph of a 6 day old human embryo beginning to implant into the lining of the uterus (endometrium). As implantation progresses, the inner cell mass begins to form into the bila...

Timelapse of dorsal side during gastrulation shows migration of hypoblast and underlying yolk syncytial layer (YSL) nuclei (larger bright spots). The prechordal plate can be seen as a more clumped mas...

Dorsal cell movements during zebrafish gastrulation includes a combination of epiboly, involution, and convergence and extension along the embryonic axis. Note that videos CIL 11818, 11819, and 11820...

Zebrafish embryo at the 5-somite stage The cross-sectional view is in the ventral portion of the neural keel. In the lower portion of the image, somites detach from ventral mesoderm. Oriented division...

Dome-stage Zebrafish embryo. The animal pole is at the bottom of the image. The yolk syncytial layer shows two tiers of nuclei. As the sequence begins, the yolk syncytial layer narrows. The view then ...