Figure 328 from Chapter 14 (Sperm Flagellum) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Scanning electron micrograph of rabbit spermatozoa on the endometrium of the uterus. Image by David Phillip...

Human sperm diluted in buffer imaged at room temperature within two hours of ejaculation. Cell at center swims at constant speed.

Figures 335 (upper) and 336 (lower) from Chapter 14 (Sperm Flagellum) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Upper, cross-section of guinea pig sperm tail at the level of the midpiece; lower, ...

Light micrograph of Volvox taken using Rheinberg illumination. Volvox form large (approximately 500 µm) spherical colonies that can contain up to 15,000 biflagellate, photosynthetic cells embedded i...

An electron micrograph of a cross section of a flagellum from the unicellular alga Chlamydomonas (Yellow strain) showing the characteristic 9-fold symmetry. This section, close to the basal body does ...

Photomicrograph of a semithin section of a termite's gut stained with haematoxylin and eosin. The gut appears to be packed with Trichonympha - a genus of protists found in the gut of many termite spec...

Light micrograph of volvox. Volvox are a relatively large (approximately 500 µm) green algae. They consist of hollow spherical colonies with up to 15,000 cells embedded in their gelatinous walls. E...

Nomarski differential interference contrast image of Eudorina. Eudorina consist of either 16, 32 or 64 (mostly 32) cells embedded in a spherical mass of gelatinous material. Each cell contains a chlo...

An electron micrograph showing a central longitudinal section of the unicellular green alga Chlamydomonas reinhardtii (y-1 yellow mutant) grown in the light. The single cup shaped chloroplast with p...

Transmission electron micrograph of longitudinal section through mouse spermatozoon showing characteristic hooked shape of sperm head and extremely compact DNA-protamine in the nucleus. Figure 117 fr...