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Morphology of the tympanic‐basicranial region in Mirounga leonina (Phocidae, Carnivora), postnatal ontogeny and sexual dimorphism
TLDR
The ontogenetic trajectory of the tympanic bulla of the southern elephant seal, Mirounga leonina, is described and analyzed, with clear morphological differences observed between CI individuals, on one hand, and CII individuals plus CIII females on the other. Expand
Integument in Antarctic seals: A comparative study and its relation to extreme environments
TLDR
An exhaustive histological description of the integument Antarctic seals through different methodological approaches in a comparative framework is performed to link the histological features to their different lifestyles. Expand
Evolutionary transformations of the malleus in pinnipeds, with emphasis on Southern Hemisphere taxa
TLDR
This character analysis shows the transformations that have occurred in the evolution of middle ear ossicles in pinnipeds and identifies diagnostic features of many of its clades. Expand
Sensory anatomy of the most aquatic of carnivorans: the Antarctic Ross seal, and convergences with other mammals
TLDR
The use of non-invasive computed tomography on specimens of this rare animal reveals a reduction in the diameters of the semicircular canals and the parafloccular volume, emphasizing the independence of some traits in convergent evolution to aquatic life. Expand
Aggregation of mummified adult crabeater seals (Pinnipedia: Phocidae) in the eastern Antarctic Peninsula: age and sex structure, taphonomy and cause of death
TLDR
This is exceptional as it is the first report of mostly adult female seals to strand in Antarctica and refutes the theory that only young animals are prone to stranding. Expand
Adaptations to a semiaquatic lifestyle in the external ear of southern pinnipeds (Otariidae and Phocidae, Carnivora): Morphological evidences.
TLDR
The study of the macroscopic and microscopic morphology of the external ear of six species of Southern pinnipeds finds an auditory organ that is functional both over and under water could be essential for social behavior in these species. Expand
The tympanic region of Otaria byronia (Otariidae, Carnivora) – morphology, ontogeny, age classes and dimorphism
TLDR
The ontogeny and sexual dimorphism of the auditory region of Otaria byronia is described and explored for the first time, and the external and internal morphology of the tympanic bulla in both sexes and across different stages (bioclasses) is provided. Expand
I've got you under my skin: inflammatory response to elephant seal's lice.
TLDR
During fieldwork in Patagonia and Antarctica, skin samples with lice within were collected for histological analysis to assess whether these parasites caused damage to the host. Expand
MORPHOLOGICAL DIVERSITY OF FACIAL VIBRISSAE IN Chaetophractus vellerosus (MAMMALIA, XENARTHRA, DASYPODIDAE) AND DIFFERENTIAL MECHANOPERCEPTION.
TLDR
The results suggest that Chaetophractus vellerosus possesses two types of vibrissae: macro- and micro-vibrissae, which might indicate that these mechanoreceptors have differential perception capacities that would probably be complementary, thus providing more precise information about the environment. Expand