Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Dolphins are among the most playful and social animals on Earth, yet ...

A recent study out of Italy found that dolphins smile at each other while playing. The smile, which is actually more of an open-mouthed expression, was observed almost exclusively when dolphins were ...

Dolphins are known for what appear to be big, contagious smiles. But do they actually, well, smile? The answer, according to a new study of dolphin play, is a resounding “maybe.” Dolphins use their ...

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-mouth ...

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, which was ...

They're widely considered some of the most charismatic animals in the ocean. Now, it turns out bottlenose dolphins actually 'smile' at each other while surfing, chasing and playfighting, according to ...

Laughter’s evolutionary story may be written on chimpanzees’ faces. Chimps at play make open-mouth facial expressions while either laughing out loud or staying silent, say psychologist Marina ...

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