“Facial expressions are a very appealing topic because they present an intersection of neurology and psychology anatomy and of course neuroanatomy,” Marom said, “because all of these actions ...

The team focused on the anatomy of mimetic muscles – tiny muscles in the face that are used to form facial expressions – in both dogs and wolves. In humans, mimetic muscles are dominated by ...

"The muscles of facial expression are relatively tiny muscles, but they can make a big impact on the way we perceive a face," says Selba, who wasn't involved in the research. An evolutionary leg ...