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  2. Marine mammals and sonar - Wikipedia

    en.wikipedia.org/wiki/Marine_mammals_and_sonar

    Before extensive research on whale vocalizations was completed, the low-frequency pulses emitted by some species of whales were often not correctly attributed to them. Dr Payne wrote: "Before it was shown that fin whales were the cause [of powerful sounds], no one could take seriously the idea that such regular, loud, low, and relatively pure frequency tones were coming from within the ocean ...

  3. Spermaceti organ - Wikipedia

    en.wikipedia.org/wiki/Spermaceti_organ

    The spermaceti organ in sperm whales is shaped like an elongated barrel and sits on top of the whale's melon. Historically, the spermaceti oil found within it was used in a variety of products – including lamp oils, candles, and lubricants – providing the economic basis for the sperm whaling industry. [ 2 ]

  4. Sperm whale - Wikipedia

    en.wikipedia.org/wiki/Sperm_whale

    The most common natural predator of sperm whales is the orca (killer whale), but pilot whales and false killer whales sometimes harass them. [195] [196] Orcas prey on target groups of females with young, usually making an effort to extract and kill a calf. The females will protect their calves or an injured adult by encircling them.

  5. Scientists document remarkable sperm whale 'phonetic ... - AOL

    www.aol.com/news/scientists-document-remarkable...

    Sperm whales, Sharma said, also use a two-level combination of features to form codas, and codas are then sequenced together as the whales communicate. The lower level has similarities to letters ...

  6. Sperm whales ‘modulate clicks in similar way to human speech’

    www.aol.com/sperm-whales-modulate-clicks-similar...

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  7. Whale vocalization - Wikipedia

    en.wikipedia.org/wiki/Whale_vocalization

    Every toothed whale except the sperm whale has two sets of phonic lips and is thus capable of making two sounds independently. [29] Once the air has passed the phonic lips it enters the vestibular sac. From there, the air may be recycled back into the lower part of the nasal complex, ready to be used for sound creation again, or passed out ...

  8. The right is wrong about off-shore wind. Climate change and ...

    www.aol.com/wrong-off-shore-wind-climate...

    Critics point to studies showing sonar used by the U.S. Navy in military training disorient some species of whales, and this is true. The barrage of noise created by seismic blasting surveys for ...

  9. Animal echolocation - Wikipedia

    en.wikipedia.org/wiki/Animal_echolocation

    Biosonar is valuable to both toothed whales (suborder Odontoceti), including dolphins, porpoises, river dolphins, killer whales and sperm whales, and baleen whales (suborder Mysticeti), including right, bowhead, pygmy right, and gray whales and rorquals, because they live in an underwater habitat that has favourable acoustic characteristics and ...