Star-like colonial diatom imaged with fluorescence microscopy. Green indicates newly depositing silica, red is chlorophyll. Tenth Prize, 2008 Olympus...

Colorized scanning electron micrograph of pollen (blue) in anther (green) held by the filament (pink ) from Acacia dealbata grown in Ecuador, Provincia...

Nephrotoma suturalis spermatocyte (crane fly sperm cell) during metaphase in meiosis. Image was captured using a newly developed orientation-independent...

Brightfield image of protozoan Elphidium crispum found growing on the Dorset coast of England. Honorable Mention, 2011 Olympus BioScapes Digital Imaging...

Differential interference contrast microscopy of the tintinnid ciliate of the marine plankton, Petalotricha ampulla. This preserved specimen (Lugol...

Eyes and optic tectum of five-day-old zebrafish larva that has a mutation causing retinal axons to project into the olfactory lobe. This image was...

Adult mouse hippocampus, a region of the brain involved in learning and memory, showing reactive astroglia (pale yellow) that have proliferated and...

Scanning electron micrograph of the calcium skeleton of coral polyp. The sample was cleaned with bleach solution, dried and carbon coated prior to...

Confocal micrograph of a green alga, Penium margaritaceum. The cell wall is shown in green and the chloroplast is represented by autofluorescence. Honorable...

This confocal micrograph shows wheat stigma hairs (blue) infected with ergot fungus (shown in light pink). The stigma hairs are part of the female reproductive...