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Information is limited on how extensively vocalization is used between individuals. It is capable of performing whistles, but rarely does so, suggesting that the whistle is a spontaneous sound and not a form of communication. The Ganges river dolphin most typically makes echolocation sounds such as clicks, bursts, and twitters. [21]
A common bottlenose dolphin (Tursiops truncatus). A dolphin is an aquatic mammal in the clade Odontoceti (toothed whale).Dolphins belong to the families Delphinidae (the oceanic dolphins), Platanistidae (the Indian river dolphins), Iniidae (the New World river dolphins), Pontoporiidae (the brackish dolphins), and possibly extinct Lipotidae (baiji or Chinese river dolphin).
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 .
Sounds from loanwords: The sounds /f, z, ʒ, q, x, ɣ/ are loaned into Hindi-Urdu from Persian, English, and Portuguese. In Hindi, /f/ and /z/ are most well-established, but can be /pʰ/ or /bʰ/ in rustic speech. /q, x, ɣ/ are variably (by dialect) assimilated into /k, kʰ, g/, respectively, and /ʒ/ is almost never pronounced and substituted ...
While [z] is a foreign sound, it is also natively found as an allophone of /s/ beside voiced consonants. The other three Persian loans, /q, x, ɣ/, are still considered to fall under the domain of Urdu, and are also used by some Hindi speakers; however, other Hindi speakers may assimilate these sounds to /k, kʰ, g/ respectively.
In the Sarasota Dolphin Research Program's library of recordings were 19 female common bottlenose dolphins producing signature whistles both with and without the presence of their dependent calf. [6] In all 19 cases, the mother dolphin inflected the signature whistle when their calf was present, by reaching a higher frequency, or using a wider ...
Indus dolphins have more teeth than Ganges dolphins, averaging 33.2 teeth in the upper jaw and the 32.9 in the lower jaw, as compared to 28.4 in the upper jaw and 29.4 in the lower. [ 3 ] Living in murky waters, South Asian river dolphins are nearly blind, their tiny eyes having flattened corneas and no lens .
River dolphins are rather small, ranging in size from the 5-foot (1.5 m) long South Asian river dolphin to the 8-foot (2.4 m) and 220-pound (100 kg) Amazon river dolphin. They all have female-biased sexual dimorphism apart from Amazon river dolphin, with the females being larger than the males.