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Keywords: Seal
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Journal Articles
J Exp Biol (2020) 223 (20): jeb230201.
Published: 18 October 2020
..., and in many cases swallowing prey whole. In seals, little work has been done to explore the anatomy and function of the UAT in the context of valving mechanisms that function to separate food and air pathways. Here we use videofluoroscopy, gross dissection, histology and computed tomography (CT) renderings...
Journal Articles
J Exp Biol (2015) 218 (15): 2463–2471.
Published: 1 August 2015
...Christin T. Murphy; Colleen Reichmuth; David Mann ABSTRACT Prior efforts to characterize the capabilities of the vibrissal system in seals have yielded conflicting results. Here, we measured the sensitivity of the vibrissal system of a harbor seal ( Phoca vitulina ) to directly coupled sinusoidal...
Includes: Supplementary data
Journal Articles
J Exp Biol (2014) 217 (7): 1024–1039.
Published: 1 April 2014
..., arctic ground squirrels that respire at extremely low rates during winter hibernation, seals and whales that undertake breath-hold dives lasting minutes to hours, and naked mole-rats that live in crowded burrows completely underground for their entire lives. These species exhibit remarkable...
Journal Articles
J Exp Biol (2014) 217 (3): 317–322.
Published: 1 February 2014
... (Lévy flights) or are more active during the day than at night. Similarly, a researcher testing diving optimality models might not care whether their tagged seals forage more above the thermocline than below. Will this change? While we hope that our illustration of flexibility stimulates some multi...
Journal Articles
J Exp Biol (2013) 216 (24): 4647–4654.
Published: 15 December 2013
... metabolism. However, in prolonged-fasted, metabolically active elephant seal pups, TH levels are maintained, if not elevated. The functional relevance of this apparent paradox is unknown and demonstrates variability in the regulation of TH levels, metabolism and function in food-deprived mammals. To address...
Journal Articles
J Exp Biol (2011) 214 (21): 3507–3510.
Published: 1 November 2011
...Arnoldus Schytte Blix Summary The structural features of the venous system of seals, including such specialties as a caval sphincter, a huge posterior caval vein and hepatic sinuses, venous plexuses and a huge extradural intravertebral vein, are described and functional aspects of these features...
Journal Articles
J Exp Biol (2011) 214 (17): 2903–2910.
Published: 1 September 2011
...José Pablo Vázquez-Medina; José Guadalupe Soñanez-Organis; Jennifer M. Burns; Tania Zenteno-Savín; Rudy M. Ortiz SUMMARY Maturation in hooded seals is characterized by the rapid development of their physiological diving capacity and is accompanied by increases in oxidant production...
Includes: Supplementary data
Journal Articles
J Exp Biol (2011) 214 (14): 2390–2397.
Published: 15 July 2011
...Michael John Moore; Terrence Hammar; Julie Arruda; Scott Cramer; Sophie Dennison; Eric Montie; Andreas Fahlman SUMMARY Lung compression of vertebrates as they dive poses anatomical and physiological challenges. There has been little direct observation of this. A harbor and a gray seal, a common...
Journal Articles
J Exp Biol (2010) 213 (16): 2713–2725.
Published: 15 August 2010
... the intracellular concentration of myoglobin, the intracellular diffusion coefficient of myoglobin and the intracellular myoglobin oxygen saturation. The review considers the role of myoglobin in oxygen transport in vertebrate heart and skeletal muscle, in the diving seal during apnea as well as the role...
Journal Articles
J Exp Biol (2010) 213 (16): 2748–2754.
Published: 15 August 2010
.... * Author for correspondence ( atomita@chem.titech.ac.jp ) † These authors contributed equally to this work 17 5 2010 © 2010. 2010 oxygen respiration ligand migration protein laser NMR crystallography seal Over the years, comparative physiologists have investigated...
Journal Articles
J Exp Biol (2010) 213 (9): 1536–1548.
Published: 1 May 2010
... in phocid seals ( Halichoerus grypus and Phoca vitulina ). We compared behavioural responses of seals to playbacks of sounds based on a model of sensory unpleasantness for humans, sounds from acoustic deterrent devices and sounds with assumed neutral properties in different contexts of food motivation...
Journal Articles
J Exp Biol (2003) 206 (10): 1727–1738.
Published: 15 May 2003
...Björn Mauck; Kerstin Bilgmann; Daryl D. Jones; Ulf Eysel; Guido Dehnhardt SUMMARY Seals have adapted to the high heat transfer coefficient in the aquatic environment by effective thermal insulation of the body core. While swimming and diving, excess metabolic heat is supposed to be dissipated...