The discovery of muscle AU101—the anatomy of seduction—shows that we need to go below the surface, dig deeper if you will, to learn about the hidden causes of what happened in the past as ...

Dogs have evolved new muscles around the eyes to better communicate with humans. New research comparing the anatomy and behavior of dogs and wolves suggests dogs' facial anatomy has changed ...

That’s no accident, a new study says. Centuries of domestication have radically reshaped a dog ’s eyebrow anatomy, making their faces—and emotions—easily readable to people.

Dogs may have adapted to be more submissive, she explains, and to show it via puppy dog eyes. If they “have this kind of deferential temperament, they may be more motivated to make this movement ...