Dolphins, unlike us, do not have manual skills, but their dances, jumps, are perhaps the equivalent of our ballet. Sounds, like music in the Orthodox… - Jerzy Vetulani

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Dolphins, unlike us, do not have manual skills, but their dances, jumps, are perhaps the equivalent of our ballet. Sounds, like music in the Orthodox Church – without musical instruments – are probably their songs, by which they are holding long discourses. It is a semantically organized signal system.