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Frontal view of the nares: opened (a) and slightly closed (b). Note the presence of different furrows, (1) middle furrow or philtrum.

Frontal view of the nares: opened (a) and slightly closed (b). Note the presence of different furrows, (1) middle furrow or philtrum.

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Simple Summary It is normally recognized that anatomy is crucial for an improved knowledge of many physiological adaptations. In the case of marine mammals, their ability to dive for long periods of time is especially striking. They spend most of their lives in water, although in general terms, they behave and have characteristics very similar to t...

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Over the past several decades, scientists have constructed bioenergetic models for marine mammals to assess potential population-level consequences following exposure to a disturbance, stressor, or environmental change, such as under the Population Consequences of Disturbance (pCOD) framework. The animal's metabolic rate (rate of energy expenditure...