From squinting to staring, dog facial expressions convey very strong messages. Here’s what your pup is trying to tell you.

In a study published in the journal Behavioural Processes last month, two US scientists counted 276 different facial expressions when domesticated cats interacted with one another.

In a presidential debate, the split screen shot of the candidates — with one candidate speaking and the other reacting non-verbally — can easily become the story of the debate.

By providing a detailed framework for interpreting facial expressions, it can help handlers and professionals better understand and respond to horses' emotional states.

Using machine learning, researchers trained Emo to make facial expressions in sync with humans.

New research is changing our understanding of cat emotions, from purring to their facial expressions A pair of recent cat studies transforms our understanding of how cats think, feel and interact ...

What a gorilla named Lia taught scientists about human facial expressions It’s very rare to get the opportunity to dissect a gorilla. The delicate questions it raises about us are bananas ...

In a study published in the journal Behavioural Processes last month, two US scientists counted 276 different facial expressions when domesticated cats interacted with one another.