a bacterium that preys upon other bacteria. The team thought it might be a good candidate for finding histones because the bacterium changes size throughout its lifecycle and thus would need to ...

"These grains are only one millionth of a meter across — about the size of a single bacterium," the European Space Agency, which jointly leads JWST with NASA and the Canadian Space Agency ...

Choanoflagellates envelop and digest still smaller cells. Ocean ecosystems depend on these predators to consume plant-like ...

entities that could cause an infection and pass through a filter small enough to exclude almost all bacteria. While the size of Mimivirus certainly stretches our common perceptions of viruses ...