Scanning electron micrograph of the surface of a peritoneal mast cell from mouse shows undulating folds, and few microvilli. The membrane folds could be misinterpreted for microvilli if analyzed in t...

Electron micrograph showing fingerprint like ridges called microplicae on the surface of fish skin epidermis from the neon tetra. These ridges offer mechanical reinforcement against trauma and help ho...

Scanning electron micrograph of a 3T3 cell growing in culture. Complexity and diversity of structure across the cell surface is apparent in the this image that s courtesy of Susan Brown. Figure 48 fr...

Scanning electron micrograph of a blood clot on the underside of a sticking plaster that has been used to treat a razor blade cut. Red blood cells (shown in red) and thin fibres of the protein fibrin ...

A colour-enhanced scanning electron micrograph image showing a cluster of Clostridium difficile on a surface. Clostridium difficile is a species of Gram-positive bacteria that causes severe diarrhea a...

Confocal image of the developing eye of a chick embryo. The dark region in the centre is the where the surface layer has invaginated to form the lens vesicle. The tissue surrounding this space is stai...

Didinium captures Paramecium. Paramecium is almost completely ingested and the proboscis is beginning to reform. This micrograph was taken in 1968 by G. Antipa on a Cambridge Mark IIA operating at 20k...

Colorized scanning electron micrograph showing psoriasis (an inflammatory skin disorder) of the tongue. This condition on the tongue causes rough, scaley and bumping texture to the surface.

Darkfield image of spherical colonies of Nostoc commune, a bluegreen alga. Nostoc commune is a terrestrial species of cyanobacteria that in 1988 was found to harbor a previously unidentified UV-A/B ab...

This colorized scanning electron micrograph shows uncoated sponge spicules from a South African sponge. Spicules provide structural support and deter predators. The image was taken with the VcD (back...