Time lapse movie of a developing sand dollar embryo expressing GFP-histone H2B. The movie shows several rounds of mitoses.

Sand dollar embryos expressing GFP-H2B going thru stages of mitosis. Video is animated with the cursor indicating the stages of mitosis and the morphological characteristics of the stage during the t...

Yolk syncytial layer nuclei undergo epiboly and converge dorsally during late gastrulation. Video made available by Mark Cooper through Zebrafish - The Living Laboratory.

Rolling of leukocytes on the walls of the caudal vein in a larval zebrafish; real time. As in adult mammals, such rolling occurs only in veins, not in arteries. Video made available by Mark Cooper th...

An anucleate cytoplast--a piece of lamellipodium detached from its parent cell--is able to migrate autonomously, without a nucleus, Golgi Apparatus, or microtubules. Image made available thru Mark Coo...

Scanning electron micrograph of coralline algae. Coralline algae are characterized by a thallus that is hard because of calcareous deposits contained within the cell walls.

Chicken basilar papilla (cochlea) hair bundles imaged with field-emission scanning electron microscope.

Scanning electron micrograph of a fragment of surface of diatom cell. Diatoms have a silica cell wall also called a frustule that has regularly repeating features.

Transmission electron microscope image of T4Phage, a bacteriophage that infects Escherichia coli bacteria. This image is part of an image group (CIL:41124-41131).

Scanning electron microscope image of Penta lanceolata anther (pollen bearing part of stamen).