A high resolution, longitudinal section through one toxicyst and one bundle of microtubules (nematodesma) of the oral area of Didinium involved in the killing and ingesting of large prey. Didinium spe...

A contraction wave circulating across a stage 18 medaka embryo over a 2.5-min interval (30 sec between each image). The embryo is ensheathed by a chorion which possesses numerous filamentous villi. Th...

Colorized scanning electron micrograph of partially dried red blood cells clotted on the cotton fibres of a gauze wound dressing. Image was collected at low vacuum to avoid charging of cotton fibres

Scanning electron micrograph of newborn spore of bacillus thuringiensis. Bacillus thuringiensis is a gram positive soil dwelling bacterio, This Spore kurstaki strain H1 has just emerged from vegetati...

The plasma membrane of Paramecium multimicronucleatum seen in a freeze fracture replica. The two rows of IMPs can be seen on the P-face of the plasma membrane that connects the plasma membrane to the ...

The plasma membrane of Paramecium multimicronucleatum seen in a freeze fracture replica. The two rows of IMPs can be seen on the P-face of the plasma membrane that connects the plasma membrane to the ...

Colorized scanning electron micrograph of thigh muscle fibrils.

Lung cancer cells.

Scanning electron micrograph of passion flower pollen. A related image is CIL:39344.

Colorized scanning electron micrograph of pollen grains that are believed to be from Galium Odoratum or "sweet woodruff", a small flower native to South Carolina.