Bottlenose dolphins 'smile' at each other while playing, research shows

PHYSorg
Oct 2, 2024, 11:00 am148 pts
Dolphins are extremely playful, but little is known about how they—and other marine mammals—communicate during playtime. New research published October 2 in the journal iScience shows that bottlenose dolphins (Tursiops truncates) use the "open mouth" facial expression—analogous to a smile—to communicate…

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