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The noises that are made throughout the entire year (the main sounds being whistles, clicks, and pulsed calls) are used to communicate with other members of their pod. [ 7 ] Each sound a whale makes could mean something different. The clicking noises whales make are used for navigation. [ 7 ]
Acoustic communication is the use of sound as signals. Acoustic communication is widespread in both aquatic and semi-aquatic invertebrates and vertebrates, [5] with many species capable of using both infrasound and ultrasound for communication. As sound travels faster and over a larger distance in water than in air, aquatic animals can use ...
Experts say the discovery, while based on a study that is too tiny to be definitive, will direct future research into how whales communicate. In a paper published Wednesday in the journal Nature, Coen Elemans of the University of Southern Denmark and colleagues studied the voice boxes, or larynxes, from three dead, stranded whales — a ...
The interactions between marine mammals and sonar have been a subject of debate since the invention of the technology. Active sonar, the transmission equipment used on some ships to assist with submarine detection, is detrimental to the health and livelihood of some marine animals. [ 1 ] Research has recently shown that beaked and blue whales ...
Whales sing loud enough that their songs travel through the ocean, but knowing the mechanics behind that has been a mystery. Scientists now think they have an idea, and it's something not seen in ...
The sound waves of a fin whale song is loud enough to penetrate Earth’s crust and assist with mapping the ocean floor, a new study has found. Singing fin whales can help map ocean floor: study ...
Cetacean surfacing behaviour is a grouping of movement types that cetaceans make at the water's surface in addition to breathing. Cetaceans have developed and use surface behaviours for many functions such as display, feeding and communication. All regularly observed members of the order Cetacea, including whales, dolphins and porpoises, show a ...
The SOFAR channel (short for sound fixing and ranging channel), or deep sound channel (DSC), [1] is a horizontal layer of water in the ocean at which depth the speed of sound is at its minimum. The SOFAR channel acts as a waveguide for sound, and low frequency sound waves within the channel may travel thousands of miles before dissipating.