Using a tiny thermometer, researchers record fluctuations of more than 7 Kelvin in sea slug neurons when a heat-generating mitochondrial process is switched on.

Habits such as napping might influence how humans cope with extreme environments, such as those at a polar research facility in winter.

As the afternoon breezes blow harder in the Atacama Desert—a place so desolate it’s used as a model of Mars—more microbes move into its driest regions.

MRI scans from more than 800 incarcerated men pinpoint distinct structural features of people who have committed homicide, compared with those who carried out other crimes.

Interspecies adoptions are rare, but it’s not the first time this population of dolphins in French Polynesia has attempted it.

Insects in the soil are difficult to monitor, but listening in on the noises they make could help farmers detect pest infestations and improve estimates of biodiversity.

Insulating tundra soil with snow increased the abundance of microbial species involved in carbon dioxide and methane release.

DNA analysis of a bizarre, 30-year-old whale skull serves as a reminder of the secrets that museum specimens keep about the natural world.

A growing body of evidence supports the theory that neural hyperactivity and hyperconnectivity precede the pathological changes that lead to neurodegeneration.