Yes, it's Agatha Christie's favorite murder weapon. But long-term exposure to arsenic in drinking water is also a major global health concern. ...read more

Nonhuman animals can certainly deceive one another — and sometimes deceive humans. But are humans the only species that tell flat-out lies?  ...read more

Previous research purported that the basic building block of life appeared in our atmosphere roughly 2.5 billion years ago. A new study rejects that timeline. ...read more

Scientists plan to develop a software tool to monitor the grunts of commercial pigs and determine when they need help. ...read more

This gruesome genre may just save your life. ...read more

Changes in the salinity of our oceans suggest dry regions will get drier, and wet regions wetter. ...read more

Looks aren't everything. When it comes to a healthy, long-lasting relationship, personality is the most attractive feature. ...read more

The brain is constantly buzzing with electrical activity. Here's how scientists study the signals that may someday help explain the nature of consciousness itself. ...read more

From moths the size of your hand to beetles that can snap through pencils, these giant insects give will make your skin crawl. ...read more

While coughing helps keep us healthy, it isn't always welcome in public spaces. Here's how to temporarily stave off the urge. ...read more