"I feel happy. Therefore I am in a good mood." These are what facial expressions mostly reveal. Think about the different words available and try to use an interesting and precise word for what ...

Dogs use facial expressions to communicate with humans and other canines. Most can have multiple implications that change based on the situation.

This story appears in the October 2017 issue of National Geographic magazine. Let’s face it: When it comes to expressions, a horse is no one-trick pony. Recent findings have revealed that our ...

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 ...