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 ...

Researchers have successfully adapted an existing coding system for human facial expressions to systematically analyse the facial expressions of bonobos. Their findings, recently published in PeerJ, ...

Horse owners are often taught to watch for obvious signs of discomfort such as pinned ears, tail swishing, bucking, or ...