To locate whales, researchers towed an array of hydrophones from the back of a boat and listened for the animals' distinct clicking vocalizations. However, the phylogenetic lines of evidence that are necessary to make a strong case for adaptation are missing. The spermaceti organ may serve these suggested purposes singly or in combination. Still, even these creatures can become prey to leviathans. These cetaceans are found in temperate and tropical waters throughout the world, usually in pods groups of about 15 to 20; solitary males, however, may wander into colder regions. Support Center Support Center. The spermaceti organ is unique to sperm whales.
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Are sperm whales social?

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A Stunning Photo That Captures a Pod of Sleeping Sperm Whales as They Float in Deep Water

Museum employees are encouraged to blog about their unique experiences and knowledge gained from working at the museum. When they finally encountered a whale, the scientists carefully approached the animal and attached an electronic depth recorder to its back. Wainwright PC, Reilly S, editor. The giant eyes of giant squid are indeed unexpectedly large, but not if used for spotting sperm whales. Indeed, in our paper we emphasized that there are many benefits of large eyes to the visual performance of giant squid. In some ways, eaten beaks only provide a superficial glimpse into the lives of deep-sea cephalopods.
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Sperm Whale | Facts, pictures & more about Sperm Whale

Indeed, the simplest interpretation of the available data actually is that any enhanced ability of these squids to detect whales is an exaptation tied to their large body size — a performance trait that was carried along with the evolution of large body size. So when it gets into really warm water, I think it gets out pretty quickly. Choi Special to LiveScience. Sign up here to see what happened On This Day , every day in your inbox! Adaptation, constraint, and the comparative method: phylogenetic issues and methods; pp. Cruise date: 14 Dec - 21 Dec,
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By spending most of their time in cold, deep waters, he noted, sperm whales can take advantage of a vulnerable squid, whether it's slowed down by hypoxia at depth during the daytime, or at night after it has made a deep dive to escape the warm, stressful conditions at the surface. We believe that here lies the core issue in this discussion. Davis and his colleagues searched for whales in their research vessel during the day by listening for the clicks they made with hydrophones, or underwater microphones. The ultrasound clicks were broadcast at up to decibels, which is about the most intense whale echolocation click a squid would be exposed to in the wild. ScienceDaily, 10 March
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Sperm squid whale

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