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 ...

New research highlights how extensive plastic pollution is—and how nonhuman species, including dolphins, are exposed.

"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.

Dolphins are among the most adorable creatures on the planet. They are playful and intelligent and are often found in ocean ...

U.S. researchers have detected microplastic particles in air exhaled by wild bottlenose dolphins, suggesting that inhalation may be a relevant route of exposure to these potentially harmful ...

Bottlenose dolphins “smile” at each other while playing, reveals new research. The "open mouth" expression probably evolved from biting, say scientists exploring how marine mammals communicate ...