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Cuvier's beaked whale, goose-beaked whale, or ziphius (Ziphius cavirostris) is the most widely distributed of all beaked whales in the family Ziphiidae. [7] It is smaller than most baleen whales —and indeed the larger toothed cetaceans (like orca and sperm whales )—yet it is large among the beaked whales and smaller cetaceans, appearing ...
A San Diego-based ecotour operator has captured stunning aerial footage, perhaps first of its kind, showing Cuvier’s beaked whales swimming along the surface. Rare footage shows elusive ...
Animals have been observed spending more than an hour at or near the surface breathing. Beaked whales are often seen surfacing synchronously, but asynchronous surfacing has also been observed. [36] In March 2014, a study by Cascadia Research revealed that Cuvier's beaked whales were recorded to dive at least 2992 m in depth, a mammalian record ...
Sowerby's Mesoplodon (Mesoplodon bidens) is a beaked whale that is smaller (4–6 m) [47] than Cuvier's Whale, with a longer, tapered beak. [49] Unlike the Cuvier Whale, this species does not appear to be spotted, [50] and the male's teeth are clearly visible but do not form prominences. [51]
The current models of breath-hold diving do not adequately explain the natural diving behaviour of these whales. [12] In beaked whales, the descent rate was consistently faster than ascent rate, at about 1.5 metres per second, regardless of dive depth, and at a steep angle of from 60 to 85 degrees, Fluke rate for Z cavirostris was higher at the ...
The overwhelming majority of the cetaceans involved in sonar-associated beachings are Cuvier's beaked whales (Ziphius cavirostrus). Individuals of this species strand frequently, but mass strandings are rare. Cuvier's beaked whales are an open-ocean species that rarely approach the shore, making them difficult to study in the wild. Prior to the ...
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It concluded that the effects of mid-frequency active sonar are strongest on Cuvier's beaked whales but vary among individuals or populations, which may depend on whether the individuals had prior exposure to sonar, and that symptoms of decompression sickness have been found in stranded whales that may be due to their response to sonar.