Scientists have some good news for rats and some bad news for city dwellers. Rat populations are rising in cities including Washington, D.C., and San Francisco, reports a study released Friday that ...

Specific cells in rats’ brains mark distant places to avoid after negative experiences, and rats think of these locations even after they leave Researchers find that rats create neurological maps of ...

Urban dwellers in Washington D.C., San Francisco, Toronto, New York City, and Amsterdam might have seen rats scurrying across their cities — and they're not imagining an influx. Rat populations have ...

Rats exposed to frequent physical, social, and predatory stress during adolescence solved problems and foraged more efficiently under high-threat conditions in adulthood compared with rats that ...

Researchers find that rats create neurological maps of places to avoid after experiencing a threat and think about these locations when exhibiting worry-related behaviors. These findings may provide ...