Alga-covered protozoan, SEM

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Alga-covered protozoan, SEM

Alga-covered protozoan, coloured scanning electron micrograph (SEM). Algae (blue) are seen on the body of the protozoan, and cilia (green) are used to waft the algae to the protozoans feeding area. A protozoan is a type of single-celled (unicellular) micro-organism. The sizes of protozoa range from 5-500 micrometres (millionths of a metre)

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Media ID 6469507

© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Alga Algae Algal Capturing Catching Caught Ciliate Covered Covering Eating False Colour Feeding Hunter Hunting Motile Predator Protozoan False Coloured Micro Biology Microbiological

EDITORS COMMENTS
This print showcases the intricate world of micro-organisms, specifically an alga-covered protozoan. In this coloured scanning electron micrograph (SEM), we witness the fascinating symbiotic relationship between algae and the protozoan. The blue algae can be observed clinging to the body of the single-celled creature, while its cilia, depicted in green, delicately transport the algae towards its feeding area. Protozoa are a diverse group of unicellular organisms that play vital roles in various ecosystems. Ranging in size from 5 to 500 micrometres, these tiny hunters navigate their microscopic realm with precision and efficiency. This particular specimen was caught in action as it indulges in its preferred diet. The image not only highlights nature's incredible diversity but also provides insight into predator-prey dynamics at a minuscule scale. It serves as a reminder that even within seemingly invisible realms, life thrives and complex interactions unfold. Through advanced imaging techniques like SEM, scientists gain valuable insights into biological systems on a cellular level. By capturing this moment through false colouring methods, we are able to appreciate both the beauty and scientific significance of this algal-covered protozoan. This remarkable photograph is part of Science Photo Library's collection dedicated to showcasing our natural world's wonders – from wild animals to botanical marvels – providing us with glimpses into hidden worlds often overlooked by our naked eyes.

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