Researchers still don't know what the open-mouth facial expression means or whether it's akin to smiling in humans—but ...
Biologists from the University of Pisa have found that bottlenose dolphins use a smile-like face to say they want to play together.
"We've uncovered the presence of a distinct facial display, the open mouth, in bottlenose dolphins, and we showed that ...
Bottlenose dolphins “smile” at each other while playing, reveals new research. The "open mouth" expression probably evolved ...
U.S. researchers found microplastic particles in dolphin breath, raising new concerns about ocean pollution.
Scientists have found microplastics in the air exhaled by wild dolphins, suggesting that these tiny particles are not just ...