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The sperm whale or cachalot [a] (Physeter macrocephalus) is the largest of the toothed whales and the largest toothed predator.It is the only living member of the genus Physeter and one of three extant species in the sperm whale family, along with the pygmy sperm whale and dwarf sperm whale of the genus Kogia.
Pygmy sperm whales and dwarf sperm whales are unique among cetaceans in using a form of "ink" to evade predation in a manner similar to squid. Both species have a sac in the lower portion of their intestinal tracts that contains up to 12 liters of dark reddish-brown fluid, which can be ejected to confuse or discourage potential predators. [30]
This long-term study has included foraging behavior and prey preference, [44] foraging mechanics, [45] female and pup activity and energy budgets, [46] [47] male activity budgets and territoriality, [48] [49] habitat-associations, [50] and non-invasive methods to identify individual sea otters [51] for which he received the Christine Stevens ...
The sperm whale respiratory system has adapted to cope with drastic pressure changes when diving. The flexible ribcage allows lung collapse, reducing nitrogen intake, and metabolism can decrease to conserve oxygen. [28] [12] Between dives, the sperm whale surfaces to breathe for about eight minutes before diving again. [29]
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Humpback whale breach sequence. A breach or a lunge is a leap out of the water, also known as cresting. The distinction between the two is fairly arbitrary: cetacean researcher Hal Whitehead defines a breach as any leap in which at least 40% of the animal's body clears the water, and a lunge as a leap with less than 40% clearance. [2]
The whale is an albino sperm whale, considered by Melville to be the largest type of whale, and is partly based on the historically attested bull whale Mocha Dick. Rudyard Kipling's Just So Stories includes the story of "How the Whale got in his Throat".
A young member of one of the world’s largest species got stranded on an Outer Banks beach. But rescuers couldn’t save it. A juvenile sperm whale was spotted near Jennette’s Pier on North ...