Both bacteria and Archaea are microorganisms that live in a wide range of habitats, including the human body. They look very similar to one another, even under a microscope.

Novel bacteria parasitizing archaea. ScienceDaily. Retrieved June 11, 2025 from www.sciencedaily.com / releases / 2025 / 02 / 250210132133.htm. Hokkaido University. "Novel bacteria parasitizing ...

Although they appear similar to bacteria under the microscope, they differ in many basic aspects: for example, in their cell membrane, metabolic pathways and genetic characteristics.

Archaea and bacteria, on the other hand, are prokaryotic, meaning they don’t contain such structures. While these two other domains might look similar under a microscope, ...

A t first glance, under the microscope, they looked a lot like bacteria.But archaea cells are evolutionarily closer to ...

Archaea, key players in the human microbiome, are linked to various diseases but their pathogenic potential remains speculative. This study highlights their role in conditions like periodontitis ...

IDEAS The search for your missing single-cell ancestor is heating up Microbes that look like strange deep-sea creatures are turning out to be a missing link in the story of how we got here.

For instance, I do my research on archaea, and there’s a group of really interesting organisms that are symbionts that couldn’t be named because they couldn’t be deposited into culture collections.

These unruly microbes belong to a category of single-celled organisms called archaea, which resemble bacteria under a microscope but are as distinct from them in some respects as humans are.

AIST researchers, in collaboration with JAMSTEC, Hokkaido University and Tohoku University, have succeeded in cultivating an ultrasmall bacterial strain parasitizing archaea and classified the ...