(Trilobites): You know that face your dog makes, the one that’s a little bit quizzical, maybe a bit sad, a bit anticipatory, with the eyebrows slanted? Sometimes you think it says, “Don’t be sad. I ...

“Puppy-dog eyes didn’t just evolve for us, in domestic dogs,” says comparative anatomist Heather Smith. Her team’s work has thrown a 2019 finding that the muscles in dogs’ eyebrows evolved to ...

Dog owners have long been aware of the phenomenon of puppy dog eyes -- just a simple glance from a canine companion can soften even the hardest of human hearts. Researchers think there is a reason for ...