Camera lucida sketches of the zebrafish embryo at selected stages. This image is in the Cleavage period at the 1.25 hour 8 cell stage. The animal pole is to the top for the early stages, and anterior...

Camera lucida sketches of the zebrafish embryo at selected stages. This image is in the Blastula period at the 4 hour sphere stage. The animal pole is to the top for the early stages, and anterior is ...

Camera lucida sketches of the zebrafish embryo at selected stages. This image is in the Blastula period at the 4.3 hour dome stage. The animal pole is to the top for the early stages, and anterior is ...

Camera lucida sketches of the zebrafish embryo at selected stages. This image is in the Gastrula period at the 5.3 hour 50% epiboly stage. The animal pole is to the top for the early stages, and anter...

Camera lucida sketches of the zebrafish embryo at selected stages. This image is in the Segmentation period at the 18 hour 18-somite stage. The animal pole is to the top for the early stages, and ante...

Camera lucida sketches of the zebrafish embryo at selected stages. This image is from the Segmentation period at the 19.5 hour 21 somite stage.The animal pole is to the top for the early stages, and a...

Camera lucida sketches of the zebrafish embryo at selected stages. This image is from the hatching period at the 48 hour long-pec stage.The animal pole is to the top for the early stages, and anterior...

Camera lucida sketches of the zebrafish embryo at selected stages. The animal pole is to the top for the early stages, and anterior is to the top later, except for the two animal polar (AP) views show...

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...