Blood vessels and astrocytes in aging rat retina, confocal imaging, 40x. Blood vessels are shown in blue; astrocytes (supportive cells of the nervous system) are mostly in red. As organisms age, ...

Individual deep cell moving by circus movements. Fundulus heteroclitus(killifish) embryo injected with GFP-actin plasmid at 1-cell stage, filmed during gastrulation. Image made available through Zebra...

Yolk syncytial layer cell nuclei exhibit convergence and extension behaviors during late gastrulation. Video made available by Mark Cooper through Zebrafish - The Living Laboratory.

Eye of a 24 hr zebrafish embryo stained for paxillin (green) and laminin (red). Images made available by Mark Cooper thru The Zebrafish A Living Laboratory.

Human umbilical vein endothelial cells stained initially for nuclei with DAPI (blue) and for vascular endothelial cadherin (red).

Fluorescent micrograph of A549 cells (adenocarcinomic human alveolar basal epithelial cells) showing the nucleus (blue) and mRNAs of TFRC (transferrin receptor) identified by fluorescently labeled oli...

Confocal micrograph of a mouse retina showing retinal astrocytes in red and blood vessels in green. Honorable Mention, 2011 Olympus BioScapes Digital Imaging Competition®.

Fluorescence micrograph showing the cross-section of bulrush (Juncus sp.) leaf, autofluorescing red (chlorophyll on external side of leaf) and blue (vascular bundles). The diameter of the stalk is ap...

A heat map (color intensity look up) of a confocal image of a fruit fly (Drosophila) ovary stained with Dapi. Honorable Mention, 2011 Olympus BioScapes Digital Imaging Competition®.

Fluorescence micrograph of a Pine stem. Honorable Mention, 2011 Olympus BioScapes Digital Imaging Competition®.