Proteins within the bacteria that cause Legionnaire’s disease can kidnap their own molecular “coffin” and carry it to a safe place within the cell, ensuring their survival, Yale School of Medicine researchers report in Nature Wednesday.

A video game designed by McGill University researchers to help train people to change their perception of social threats and boost their self-confidence has now been shown to reduce the production of the stress-related hormone cortisol. The new findings appear in the October issue of the American Psychological Association’s Journal of Personality and Social Psychology.

Spanish authorities have announced they have discovered a previously unknown population of Iberian lynx, triggering hope for one of the world’s most endangered cat species, said World Wildlife Fund today.

When David Jones, a fisheries oceanographer at the Cooperative Institute for Marine and Atmospheric Studies (CIMAS) located at the University of Miami’s Rosenstiel School, set out to design a better light trap to collect young reef fishes, he never imagined his invention would contribute to the discovery of a new species. But, after finding a goby that didn’t quite fit any known description, his catch turned out to be the answer to another scientist’s twenty-five-year-old research conundrum. The larval stage captured in Jones’s new trap was matched to the adult form of a previously unknown species of reef fish by new DNA barcoding technology—which confirmed both were members of a new species.

For the first time, researchers at the University of Pennsylvania are able to pinpoint brain waves that distinguish true from false memories, providing a better understanding of how memory works and creating a new strategy to help epilepsy patients retain cognitive function.

What: Viral load—the amount of virus in the blood of an HIV-infected person—has long been viewed as the chief indicator of how quickly someone infected with HIV infection progresses to AIDS. New data published in Nature Immunology builds on previous work that suggests that several other factors in addition to viral load significantly contribute to disease progression rates.

Without sleep, the emotional centers of the brain dramatically overreact to negative experiences, reveals a new brain imaging study in the October 23rd issue of Current Biology, a publication of Cell Press. The reason for that hyperactive emotional response in sleep-deprived people stems from a shutdown of the prefrontal lobe—a region that normally keeps emotions under control.

Researchers at Johns Hopkins’ McKusick-Nathans Institute of Genetic Medicine today are releasing newly generated genetic data to help speed autism research. The Hopkins data, coordinated with a similar data release from the Autism Consortium, aims to help uncover the underlying hereditary factors and speed the understanding of autism by encouraging scientific collaboration. These data provide the most detailed look to date at the genetic variation patterns in families with autism.

Conservationist examing a recently captured Amur leopard in Russia. A rare Amur leopard (Panthera pardus orientalis), one of only an estimated 30 left in the wild has been captured and health-checked by experts from a consortium of conservation organizations, before being released.