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Process in a dolphin echolocation: in green the sounds generated by the dolphin, in red from the fish. Idealized dolphin head showing the regions involved in sound production. This image was redrawn from Cranford (2000). Odontocetes produce rapid bursts of high-frequency clicks that are thought to be primarily for echolocation. Specialized ...
Several animal species can hear frequencies well beyond the human hearing range. Some dolphins and bats, for example, can hear frequencies over 100 kHz. Elephants can hear sounds at 16 Hz–12 kHz, while some whales can hear infrasonic sounds as low as 7 Hz.
Typically, the inner core of the melon has a higher wax content than the outer parts and conducts sound more slowly. This gradient refracts sound and focuses it like a lens. The lipids in the melon cannot be digested by the animal, as they are metabolically toxic. A starving dolphin has a robust melon even if the rest of its body is emaciated. [1]
Whale vocalizations are the sounds made by whales to communicate. The word "song" is used in particular to describe the pattern of regular and predictable sounds made by some species of whales (notably the humpback and bowhead whales) in a way that is reminiscent of human singing. Humans produce sound by expelling air through the larynx.
It translated seven vowel sounds spoken by humans to pure sine wave whistles from 7,000 Hz to 15,000 Hz. Thus the humans did not need to learn a whistled language, and the dolphins did not need to make human sounds. The equipment was analog, with filters which were able to distinguish vowel sounds and play the appropriate whistle frequencies.
The first ever 3D prints of images contained in dolphin echolocation sounds have been produced—including one of a human being seen from a dolphin's point of view.
Certain words in the English language represent animal sounds: the noises and vocalizations of particular animals, especially noises used by animals for communication. The words can be used as verbs or interjections in addition to nouns , and many of them are also specifically onomatopoeic .
Young dolphins, within the first few months of life, display their creativity by creating a unique sound.