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Like most toothed whales, narwhals use sound to navigate and hunt for food. They primarily vocalise through clicks, whistles and knocks, created by air movement between chambers near the blowhole. [65] [66] The frequency of these sounds ranges from 0.3 to 125 hertz, while those used for echolocation typically fall between 19 and 48 hertz.
They do not have a true dorsal fin, but do have a narrow ridge running along the back, which is much more pronounced in the narwhal. They are highly vocal animals, communicating with a wide range of sounds. Like other whales, they also use echolocation to navigate. [2]
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.
Mates may emit low, mooing sounds that sound like a cow. Shoebill families also use high-pitched whines to communicate. Chicks make “hiccup”-like sounds to let their parents know they’re hungry.
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 .
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Humpback whales may also make stand-alone sounds that do not form part of a song, particularly during courtship rituals. [15] Finally, humpbacks make a third class of sound called the feeding call. [citation needed] This is a long sound (5 to 10 s duration) of near constant frequency. Humpbacks generally feed cooperatively by gathering in ...
the narwhal tusk is a sexual trait: I would rephrase this: it might have a specialist meaning for biologists, but to me it sounds like "is tied to whether the animal is male or female", and we knew that already.