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Each dolphin has a unique signature whistle, like a name. These frequency-modulated whistles typically sweep from 5-15 kHz and last 0.5-2 seconds.
Dolphins use rapid click trains for navigation and hunting. These ultrasonic bursts can reach frequencies up to 150 kHz and provide detailed information about their environment.
Rapid click sequences used in social contexts, often indicating excitement or aggression. Can sound like a creaking door or squeaky toy.
Dolphin echolocation is so precise they can detect objects the size of a golf ball from 50 meters away and can even determine an object's internal structure.
Dolphins are one of the few mammals capable of vocal learning, meaning they can modify their vocalizations based on what they hear - similar to how humans learn language.
Research suggests dolphins can combine whistles in meaningful ways, potentially forming a proto-language with syntax and grammar-like structures.
Modern machine learning is helping us decode dolphin communication patterns, potentially allowing for real interspecies communication in the near future.