New research reveals an endearing habit amongst bottlenose dolphins that crops up during playtime—one that we humans display too. Here’s what the study found. Dolphins are beloved amongst researchers ...

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 ...

Dolphins are extremely playful, but little is known about how they -- and other marine mammals -- communicate during playtime. New research shows that bottlenose dolphins (Tursiops truncates) use the ...

Add Yahoo as a preferred source to see more of our stories on Google. Dolphins have an irresistible charm for people. They are extremely playful at all ages and often play alone, surfing the waves, ...

Dolphins don't just look like they're smiling when they open their mouths. Some scientists think they actually are grinning at each other, and the expression seems to be contagious. A relaxed, open ...

Dolphins are highly intelligent creatures, delighting humans with their expressive faces that often appear to be smiling. Well, a new study looking at that very grin has discovered that it may in fact ...

Dolphins are known for their playful antics, and they communicate in unique ways during these fun times. New research has uncovered a cute way dolphins express their joy and invite others to join in ...

Editor’s Note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. For humans, flashing a smile is an easy ...