Researchers still don't know what the open-mouth facial expression means or whether it's akin to smiling in humans—but ...

Excessive tourism is killing dolphins off the coasts of Jeju Island, according to marine scientists and environmental ...

A new study suggests that the animals perform ‘open mouth displays’ when they are in front of a playmate, an expression that ...

Dolphins are extremely playful, but little is known about how they—and other marine mammals—communicate during playtime. New ...

These incredible mammals are far smarter than we thought—dolphins indulge in recreational substances, communicate with ...

“We’ve uncovered the presence of a distinct facial display, the open mouth, in bottlenose dolphins, and we showed that ...

The figures showed 13pc of ­common dolphins stranded or bycaught off the Irish coast between 2017 and 2019 died from ...

Findings on bottlenose dolphins show how playful behavior and open-mouth displays evolved, enhancing understanding of social ...

Dolphins are extremely playful, but little is known about how they—and other marine mammals—communicate during playtime. New ...

For dolphins, play can include acrobatics, surfing, playing with objects, chasing, and playfighting. These activities may appear aggressive to humans, but generally are not. Other mammals, including ...

Bottlenose dolphins “smile” at each other while playing, reveals new research. The "open mouth" expression probably evolved ...

"We've uncovered the presence of a distinct facial display, the open mouth, in bottlenose dolphins, and we showed that ...