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 human facial action coding system, or FACS, has been developed as a tool for cross-species systematic comparisons of facial muscles to help interpret the resulting facial expressions of the common ...

I am tired of studying Donald Trump’s facial expressions, but I can’t help myself. People keep asking me for my scientific opinion of Trump’s facial expressions. That’s a tall order. I do anatomically ...