Figure 346 from Chapter 14 (Sperm Flagellum) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Top panel: A cross section of sperm tail of the cecidomyid fly, Diplolaboncus tumorificus shows mitochondria...

Here we have a few hours in the life of the tail, as myotomes pinch off. The elapsed time is indicated by the clock in the upper right hand corner and the counter in the lower left and corner. This v...

Figures 347 (upper) and 348 (lower) from Chapter 14 (Sperm Flagellum) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Sperm tail organization in some insects deviates from the organization observed in ...

Fluorescence microscope image of a cryostat section of mouse tongue epithelium immuno-stained for all taste bud cells (red) type II taste bud cells (green)and counter-stained for DNA (blue). The imag...

Camera lucida sketches of the zebrafish embryo at selected stages. This image is in the Blastula period at the 2.75 hour 512 cell stage. The animal pole is to the top for the early stages, and anteri...

Camera lucida sketches of the zebrafish embryo at selected stages. This image is in the Blastula period at the 3.3 hour high cell stage. The animal pole is to the top for the early stages, and anteri...

Camera lucida sketches of the zebrafish embryo at selected stages. This image is in the Segmentation period at the 14 hour 10 somite stage. The animal pole is to the top for the early stages, and ant...

Camera lucida sketches of the zebrafish embryo at selected stages. This image is from the Pharyngula period at the 31 hour Prim-16 stage. The animal pole is to the top for the early stages, and anteri...

Camera lucida sketches of the zebrafish embryo at selected stages. This image is from the hatching period at the 60 hour pec-fin stage. The animal pole is to the top for the early stages, and anterio...

Camera lucida sketches of the zebrafish embryo at selected stages. This image is from the hatching period at the 72 hour protruding mouth stage. The animal pole is to the top for the early stages, an...