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Mice exposed to low doses of penicillin in utero or as young pups exhibited long-term behavioral differences not seen in their non-exposed counterparts, according to a study.

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Recolonizing middle-aged animals with bacteria from younger ones kept killifish alive longer than usual, researchers report.

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image: In Certain Social Bees, Gut Microbiomes Follow Phylogeny

In Certain Social Bees, Gut Microbiomes Follow Phylogeny

By | March 29, 2017

Corbiculate bees and their gut-dwelling microbes have been coevolving since the social species evolved from their solitary ancestors around 80 million years ago, scientists suggest. 

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image: PCSK9 Drug Reduces Heart Disease Risk

PCSK9 Drug Reduces Heart Disease Risk

By | March 22, 2017

A cholesterol-lowering drug significantly cut the risk of heart attack and stroke in a recent study. But is it worth the steep cost?

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image: Inflammation Drives Gut Bacteria Evolution

Inflammation Drives Gut Bacteria Evolution

By | March 16, 2017

Viruses within Salmonella rapidly spread genes throughout the bacterial population during a gut infection, scientists show.

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image: Human Gut Microbe Transplant Alters Mouse Behavior

Human Gut Microbe Transplant Alters Mouse Behavior

By | March 1, 2017

Fecal transplants from humans with irritable bowel syndrome and anxiety into mice lead to similar symptoms and anxiety-like behavior in the rodents, researchers report.  

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image: Image of the Day: Electronic Beats

Image of the Day: Electronic Beats

By | February 27, 2017

Scientists create an artificial heart fiber that can mimic the movement in a living heart.

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NASA researchers have discovered ancient microbes locked inside minerals, suggesting a possible niche for interstellar life.

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image: Toward Killing Cancer with Bacteria

Toward Killing Cancer with Bacteria

By | February 8, 2017

Researchers employ an engineered microbe to destroy tumor cells in mice.

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image: Discovering Novel Antibiotics

Discovering Novel Antibiotics

By | February 1, 2017

Three methods identify and activate silent bacterial gene clusters to uncover new drugs

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