Researchers have successfully adapted a standardized system for analyzing facial expressions to include bonobos, our closest living relatives, alongside chimpanzees. The study, led by an international ...

The purrs and meows we all know and expect from our feline friends are known to be communicative to humans. But how do cats interact with each other? By way of nearly 300 different facial expressions, ...

Facial expressions play a fundamental role in social communication. While it is well established that others’ expressions influence our behavior—such as approaching a smiling person or avoiding an ...