10 Tailbud pulses over 105 min at 8-12 somite stages. This is the latter part of the 95% epiboly to 12-somite sequence flipped vertically for clearer orientation. The movie represents a 120-sec int...

Prewave pulse and axial wave. This prewave pulse appears to arise predominantly from the animal pole region, others however appear to emerge nearly simultaneously over large regions of the blastoderm...

Pre-wave pulse (PWP). The apparently whole-embryo calcium pulse appears to initiate (the PWP region on the wave graphs) over a widespread area of blastoderm, possibly earliest at the animal pole, and...

Calcium and Cleavage Furrows, animal pole view. Fertilized zebrafish eggs were collected within 5 min of spawning, enzymatically dechorionated, and injected with approximately 0.9 nl of a 1% solution...

This movie shows the "yolk flash". The apparently whole-embryo calcium pulse appears to initiate over a widespread area of blastoderm, possibly earliest at the animal pole, and then spreads first to ...

Calcium and Cleavage Furrows. Fertilized zebrafish eggs were collected within 5 min of spawning, enzymatically dechorionated, and injected with approximately 0.9 nl of a 1% solution of recombinant f-...

A single bidirectional calcium wave. The prewave pulse lasts only for 0.6 sec in this time-lapse sequence. This sequence covers 350 sec of development at 50x real time. The movie represents a 30-sec...

A unidirectional calcium wave arising form the left side. The wave originates from a hot spot on the left side of the blastoderm margin and intensifies while crossing the node region. This sequence ...

A wave spreading around the blastoderm margin and then up the primary body axis is shown at 50x real time. The wave begins on the right side of the marginal zone. The movie represents a 30-sec integr...

Imaging sequence of calcium waves spanning from late shield state to 95% epiboly. This sequence covers 3 h of development and is running at 150x real time.The movie represents a 40-sec integration wi...