Phylogenetic allometric scaling of near basal breathing frequency in terrestrial, semi‐aquatic and aquatic mammals [PDF]
Experimental PhysiologyWe measured the BASAL breathing frequency following an overnight fast in adult, non‐pregnant/non‐lactating, inactive mammals ranging in body mass from 15 to 5520 kg.
Andreas Fahlman +10 more
doaj +3 more sources
The impact of the land-to-sea transition on evolutionary integration and modularity of the pinniped backbone [PDF]
Communications Biology, 2023 In this study, we investigate how the terrestrial-aquatic transition influenced patterns of axial integration and modularity in response to the secondary adaptation to a marine lifestyle.
Juan Miguel Esteban +5 more
doaj +2 more sources
The tympanic region of Otaria byronia (Otariidae, Carnivora) – morphology, ontogeny, age classes and dimorphism [PDF]
Journal of Anatomy, 2018 AbstractHere we describe and explore for the first time the ontogeny and sexual dimorphism of the auditory region of Otaria byronia. We studied the tympanic region of skulls of 237 specimens of different ages and sexes. Geometric morphometric methods were used to analyze the tympanic bulla.
C. M. Loza +5 more
semanticscholar +5 more sources
Mammalia, Carnivora, Otariidae, Arctocephalus galapagoensis Heller, 1904: first continental record for Costa Rica [PDF]
Check List, 2016 This is the first record of Arctocephalus galapagoensis for the mainland coast of Costa Rica, which is outside the geographical distribution of this species about 1,300 km from its type locality.
Andrea Montero-Cordero +2 more
doaj +5 more sources
Nature Conservation Research: Заповедная наукаThe severe decline in the number of Eumetopias jubatus (hereinafter – Steller sea lion) almost throughout the entire range has drawn the public attention to monitor the abundance and increase in research activity of the species.
Anna D. Kirillova +2 more
doaj +2 more sources
A comparative analysis on cranial ontogeny of South American fur seals (Otariidae: Arctocephalus)
, 2015 Fil: Cappozzo, Humberto Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario.
B. A. Tarnawski +3 more
semanticscholar +3 more sources
Morphology and function of pinniped necks: The long and short of it. [PDF]
Anat Rec (Hoboken)Abstract Terrestrial vertebrates from at least 30 distinct lineages in both extinct and extant clades have returned to aquatic environments. With these transitions came numerous morphological adaptations to accommodate life in water. Relatively little attention has been paid to the cervical region when tracking this transition.
Keller J +3 more
europepmc +2 more sources
Update on H5N1 Panzootic: Infected Mammal Species Increase by Almost 50% in Just Over a Year. [PDF]
Influenza Other Respir VirusesInfluenza and Other Respiratory Viruses, Volume 19, Issue 9, September 2025.
Plaza P, Lambertucci SA.
europepmc +2 more sources
Are Sponges Good Natural Sentinels for Monitoring Fish Diversity in Antarctic Coastal Waters? [PDF]
Ecol EvolThis study demonstrates that eDNA metabarcoding using both water and sponge samples is an effective tool for monitoring fish biodiversity along the Western Antarctic Peninsula. The results revealed 14 endemic Antarctic fish species and one marine mammal, with water samples often offering a more comprehensive view than sponges.
Angulo-Preckler C +5 more
europepmc +2 more sources
Ecological Insights Into the Extinct Korean Sea Lion (Zalophus japonicus) in Korea Based on Stable Isotope Analysis of Bone Collagen. [PDF]
Rapid Commun Mass SpectromABSTRACT Rationale The Japanese sea lion (Zalophus japonicus), once abundant in Japan, Korea, and Russia, went extinct by the mid‐20th century due to hunting and environmental change. This study examines the diet and ecological role of Korean Z. japonicus using stable carbon and nitrogen isotope analysis of bone collagen from archaeological and ...
Lee YJ, Kim MJ, Kim JS, Kwak SN, Lee SH.
europepmc +2 more sources