Nonverbal communication means conveying information without using words. This might involve using certain facial expressions or hand gestures to make a specific point, or it could involve the use (or ...

Humans can produce thousands of distinct facial expressions – including 19 different types of smile, according to research by the American psychologist Paul Ekman. However, only one of these is ...

If a mouse is in a lot of pain, an experienced handler may see it in the animal’s facial expression—its narrowed eyes and bulging cheeks. But, subtler facial expressions may be more difficult to match ...