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New study reveals dolphins mimic each other's "smiles" during play, suggesting complex social communication.
New research shows that bottlenose dolphins open their mouths in a smile-like expression when playing, especially when in sight of other dolphins.
This study, which filmed 22 dolphins for 80 hours, found dolphins mimic each other's open-mouth expressions rapidly, with a 13 times higher chance of mimicking within a second if seen.
The research, using AI and eye-tracking, highlights the importance of visual cues in dolphin social interactions and suggests complex communication methods.
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Un nuevo estudio revela que los delfines imitan las "sonrisas" de los demás durante el juego, sugiriendo una compleja comunicación social.