Bottlenose dolphins “smile” at each other while playing, making open-mouth facial expressions that are similar to those used by other animals, new research suggests. These findings ...

For humans, flashing a smile is an easy way to avoid misunderstanding. And, according to a new study, bottlenose dolphins may use a similar tactic while playing with each other. The study ...

Dolphins are extremely playful, but little is known about how they -- and other ... "smile" was perceived, the playmate smiled back 33% of the time. "Some may argue that dolphins are merely ...

For humans, flashing a smile is an easy way to avoid misunderstanding. And, according to a new study, bottlenose dolphins may use a similar tactic while playing with each other. The study ...

Dolphins living in captivity often make an open-mouth facial expression while playing with each other. Zoomarine, Italy Bottlenose dolphins “smile” at each other while playing, making open ...