A 4D visualization of zebrafish somitogenesis and neural keel formation. The Quicktime movie shows progressively dorsal optical sections in a segmenting embryo. Note the midline alignment of neuroepit...

Neural plate of Xenopus laevis at early neural tube closure.

Zebrafish Notogenesis and Early Neurulation. Mediolateral intercalation produces convergent-extension of the notochordal rudiment. Cells within the center of the notochord elongate and are incorporate...

Polarized cell rearrangement in the Platynereis neuroectoderm visualized by time-lapse imaging. This time-lapse movie shows convergent extension by mediolateral cell intercalation of the ventral neuro...

Elongation of the dorsal trunk ectoderm closely matches that of the ventral body side, but shows very little convergence. This time-lapse movie shows the elongation of the dorsal region of Platynereis...

Elongation of the lateral trunk ectoderm closely matches that of the ventral body side, but shows very little convergence. This time-lapse movie shows the elongation of the lateral region of Platynere...

Fluorescent micrograph of a Xenopus melanophore, showing microtubules (green), microtubule plus ends (red) and nucleus (blue). Honorable Mention, 2011 Olympus BioScapes Digital Imaging Competition®...

Transverse section through the neural tube of an early stage chick embryo. The brown stain shows the neurofilament in the axons of the commisural neurons (running down the sides of the neural tube) an...

These examples of ependymal epithelium from the rat brain represent epithelia that lack zonulae occludentes. Further, there appears to be no consistent order to the junctional specializations that are...

Figure 297 from Chapter 11 (Melanin Pigment) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Epidermal melanocyte from facial skin of an orangutan illustrates the interstitial location of a melanocyte ...