Bottlenose dolphins use an "open mouth" facial expression during social play to signal playfulness. This expression is ...

New study suggests bottlenose dolphins use open-mouth gestures, resembling smiles, to signal play during social interactions.

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

Captive dolphins are more likely to make an open-mouthed expression when their playmate can see them and they often ...

A new groundbreaking study revealed that, like human beings, dolphins also ‘smile’ at each other to avoid ...

Experts urge caution in calling bottlenosed dolphins’ gesture a humanlike “smile,” but agree it seems to be important for how the animals communicate.

Dolphins open their mouths in what appears to us to be a smile when they are in the field of vision of others they like.

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 ...

How dolphins use facial expressions to express playfulness had never been explored before. The post Bottlenose dolphins ...

Bottlenose dolphins have been recorded using open mouth expressions, resembling human smiles, and mirroring those expressions ...

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

Russia weaponizes animals in the Black Sea, reviving Soviet-era programs, endangering dolphin species. The death of spy whale ...