Epulopiscium fishelsoni chromosome copies

One bacterium can hold up to 100,000 copies of its chromosome

Most bacteria and other prokaryotes have only one copy of each main chromosome. The giant bacterium Epulopiscium fishelsoni is very different: a single cell can contain as many as 100,000 copies.

An English diary records baseball in 1755

A handwritten English diary entry from 1755 records a game called “base ball.” It places the game in England decades before the traditional mid-19th-century U.S. origin story, and supports the possibility that English settlers carried it across the Atlantic.

Some viruses can make their hosts more resistant to bacterial infections

Viruses are usually discussed as causes of disease, but some persistent viral infections can alter a host's immune response in useful ways. Experiments in mice have shown that certain latent herpesvirus infections can temporarily improve resistance to particular bacterial pathogens. The effect depends on the virus, host and circumstances; it does not mean viral infections are generally beneficial.

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Epulopiscium fishelsoni chromosome copies

One bacterium can hold up to 100,000 copies of its chromosome

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