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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.
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]
Eating a heart-healthy lunch is easy with these tips from Dr. Krumholz: Avoid processed foods whenever possible. Convenient and packaged foods may save time, but they are often high in sodium ...
James Bartley (1870–1909) is the central figure in a late nineteenth-century story according to which he was swallowed whole by a sperm whale. He was found still living days later in the stomach of the whale, which was dead from harpooning. The story originated of an anonymous form, began to appear in American newspapers.
A human can easily fit inside their mouth, which can be 10 feet in diameter. However, the opening to their esophagus (the tube leading to their stomach) is very small – only around the size of a ...
Scientists studying the sperm whales that live around the Caribbean island of Dominica have described for the first time the basic elements of how they might be talking to each other, in an effort ...
A humpback whale straining water through its baleen after lunging. Rorquals feed on plankton by a technique called lunge feeding. [24] Lunge feeding could be regarded as a kind of inverted suction feeding, during which a whale takes a huge gulp of water, which is then filtered through the baleen. [24]
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]