Do Dog Faces Shape Behavior?

Summary: Short-nosed dog breeds like Pugs and French Bulldogs are often perceived as calm, affectionate companions—but their behavior is influenced by more than just head shape. A new study of…

Dolphins’ “Smile” Reveals Playful Intentions

Summary: Bottlenose dolphins use an “open mouth” expression, similar to a smile, during playful interactions with other dolphins. This expression is a signal of fun and playfulness, preventing misunderstandings as…