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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.
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A 2008 study found that sperm whales sleep in vertical postures just under the surface in passive shallow "drift-dives", generally during the day, during which whales do not respond to passing vessels unless they are in contact, leading to the suggestion that whales possibly sleep during such dives. [71]
Nature’s Best Photography (NBP) International Awards recently announced winning and highly honored photos that are absolutely captivating. Over 25 thousand images were entered to compete in 11 ...
And sperm whales function as a family, "Sperm whales are often spotted in groups (called pods) of some 15 to 20 animals. Pods include females and their young, while males may roam solo or move ...
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 ...
Whales often rest for periods of time under the surface in order to sleep in mainly horizontal positions, although sperm whales also rest vertically. [42] However, as they consciously need to breathe at the surface, they can rest only one-half of their brain at a time, known as unihemispheric slow-wave sleep .
[Marine Biologist Lisa Steiner]"I'm probably one of the original sperm whale geeks basically."Marine biologist Lisa Steiner has made it her life’s workto help people understand sperm whales ...