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The cells signal to the brain how hydrating particular beverages are, but it’s not yet clear whether they play a similar role in humans.

Scientists say they have finally figured out why some people with severe malaria end up with dangerous hypoglycemia, also reporting that the condition starves the parasite into changing tactics from virulence to transmission.

Today’s extinction rates are sky-high. But scientists debate if that’s sufficient evidence to conclude that Earth is undergoing a mass extinction event—or whether that’s even a helpful designation.

When Caulobacter crescentus finds itself in a nutrient-poor environment, it clusters an enzyme necessary for cell division thanks to a physical phenomenon known as phase separation so it can make better use of dwindling fuel.

The Georgetown University biologist studies how climate change contributes to the emergence of new zoonotic threats.

An analysis of human data from the UK biobank also finds an association between Y chromosome loss and heart disease in men.

Thirteen people with the illness have tested negative for Ebola and Marburg. The Tanzanian government continues to investigate the source.

Agency members express hope that the availability of a traditional, protein-based vaccine might convince holdouts to get vaccinated.

University of Wollongong epidemiologist Gideon Meyerowitz-Katz speaks with The Scientist about his team’s finding that flawed and fraudulent COVID-19 research continues to be cited.

Multiple lines of evidence contradict the idea that the disease came to Europe via trans-Atlantic exchange.

The biotech company Verve Therapeutics launched the study with the aim of using base editing to treat a genetic condition that causes high cholesterol and increases a person's risk of developing cardiovascular disease.

Ultraviolet radiation leads to secretion of an appetite-boosting hormone in male mice, but experts say it’s not yet clear whether the mechanism applies to humans.