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To understand the hunting and foraging behavior of beaked whales, researchers used sound and orientation recording devices on two species: Cuvier's beaked whale (Ziphius cavirostris) and Blainville's beaked whale (Mesoplodon densirostris). These whales hunt by echolocation in deep water (where the majority of their prey is located) between ...
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 ...
Baird's beaked whale has a diet that consists primarily of deep sea fish and cephalopods found at its preferred dive depths (1000–1777m). [56] [57] On rare occasions, it has been known to eat octopus, lobster, crab, rockfish, herring, starfish, pyrosomes and sea cucumbers. [41]
Baird's and Arnoux's beaked whales are so similar that researchers have debated whether or not they are simply two populations of the same species. However, genetic evidence and their wide geographical separation has led them to be classified as separate. Baird's beaked whale is the second largest living species of toothed whale after the sperm ...
Perrin's beaked whales have not definitively been recorded alive by scientists; however, its appearance is known from beached specimens. Perrin's beaked whales cannot be identified with absolute certainty at sea. However, the combination of small size, appearance, and a small presumed geographical range makes uncertainty unlikely.
According to the DOC, the spade-toothed whale was first documented in 1874 from lower jaw and teeth samples collected on Pitt Island, around 500 miles off New Zealand’s west coast.
Deraniyagala's beaked whale can also stay underwater for hours before surfacing to breathe. In 2019, a group of researchers observed beaked whales taking 3 short dives of between 14 and 18 minutes, briefly surfacing in between for 1–5 minutes. Then, after a fourth dive, the whales stayed submerged for 1.8 hours before resurfacing.
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 ...