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These whales hunt by echolocation in deep water (where the majority of their prey is located) between about 200 and 1,885 m (656 and 6,184 ft) and usually catch about 30 prey per dive. Cuvier's beaked whales must forage on average at 1,070 m (3,510 ft) for 58 minutes and Blainville's beaked whales typically forage at 835 m (2,740 ft) deep for ...
Blainville's beaked whales do not capture prey by biting. They use suction feeding to capture prey. They create low pressure in the mouth by retracting tongue, and using throat grooves to expand throat volume. This creates a lower pressure in the mouth than the surrounding waters, allowing the whale to suck in water and whole prey. [12]
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 ...
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The main prey of the strap-tooth beaked whale is considered to be oceanic squid species. In an extensive dietary analysis of 14 stranded whales from New Zealand and South Africa, 94.8% of the stomach contents were composed of cephalopods, with evidence of some fish and crustaceans. [20]
Beaked whales like Deraniyagala's beaked whale have a complex foraging mechanism which involves the use of echolocation clicks to locate deep-water squid and fish during their foraging dives, and then use buzzes to capture their prey. [8] There are different phases of acoustic behavior that beaked whales exhibit during foraging dives. The first ...
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 ...
"Since 1978, the Marine Mammal Stranding Center has responded to a total of 19 beaked whales of four different species, including Gervais’, True’s, Cuvier’s and Blainville’s," center staff ...