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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 ...
Not much information is available about group composition of beaked whales. Only four species have been studied in great detail: northern bottlenose whale, Blainville's beaked whale, Baird's beaked whale, and Cuvier's beaked whale. Female northern bottlenose whales appear to form a loose network of social partners with no obvious long-term ...
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 ...
A researcher fires a biopsy dart at an orca.The dart will remove a small piece of the whale's skin and bounce harmlessly off the animal. Cetology (from Greek κῆτος, kētos, "whale"; and -λογία, -logia) or whalelore (also known as whaleology) is the branch of marine mammal science that studies the approximately eighty species of whales, dolphins, and porpoises in the scientific ...
Many other cetaceans including rare species such as fin whales, Cuvier's beaked whales, and orcas are present off Outer Banks and Cape Hatteras. Whales such as Atlantic gray (now extirpated), [16] North Atlantic right (critically endangered), and North Atlantic humpback were historically common.
Marino et al. 2000 estimated the adult body mass for Zygorhiza to 3,351 kg (7,388 lb) based on an estimated body length of 5.2 metres (17 ft). Using CT scans, they estimated the brain weight to 738.2 g (26.04 oz), resulting in an EQ value of 0.26 (compared to 0.54 for a modern cetacean such as Cuvier's beaked whale .) [ 13 ]