Related topics: microbes

Bears' seasonal hibernation linked to changes in gut microbes

Each year, as bears prepare to hibernate, they gorge themselves on food to pack on fat. And yet, despite the rapid weight gain, the animals somehow avoid the health consequences so often associated with obesity in humans. ...

Mammals shape their microbiome to prevent disease

Gut microbes are well known to contribute to health and disease, but what has been less clear is how the host controls gut microbes. A study published January 13 in Cell Host & Microbe now reveals that mice and humans produce ...

The evolutionary link between diet and stomach acidity

An analysis of data on stomach acidity and diet in birds and mammals suggests that high levels of stomach acidity developed not to help animals break down food, but to defend animals against food poisoning. The work raises ...

Microbe-mediated adaptation to a novel diet

Insects are the most diverse animal group on earth. Many of them feed on plants, and they are constantly challenged by the diverse direct and indirect defenses of their food plants as well as an imbalanced nutrient composition. ...

Microbes help produce serotonin in gut

Although serotonin is well known as a brain neurotransmitter, it is estimated that 90 percent of the body's serotonin is made in the digestive tract. In fact, altered levels of this peripheral serotonin have been linked to ...

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