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...

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...

Zebrafish at the 3-somite stage. A dorsal view of the embryo, focused first at the level of the hypoblast. The notochord is centrally located. The first three frames of the sequence are at the same ti...