A study uncovered how Salmonella, a major cause of food poisoning, can invade the gut despite the presence of protective bacteria.

Stress is a double-edged sword when it comes to memory: stressful or otherwise emotional events are usually more memorable, but stress can also make it harder for us to retrieve memories. Now, ...

Mountain lions in greater Los Angeles are proactively shifting their activity to avoid interacting with cyclists, hikers, joggers and other recreationists, finds a new study.

Animals and plants also live and thrive on public squares. This creates opportunities for greater biodiversity and well-being for the human population. Researchers have studied at 103 locations in ...

Metamaterials are artificial materials that do not occur in nature. Their components function like atoms in conventional materials but have special optical, electrical and magnetic properties.