Results 91 to 100 of about 61,012 (261)

Clade‐wide morphological and functional variation of the sauropsid columella

The Anatomical Record, EarlyView.
Abstract The columella (=stapes) is the middle ear bone of reptiles that transmits vibrations from the environment to the inner ear. It has been shown to exhibit extensive interspecific morphological disparity in several clades; however, its morphological variation and associated functional consequences remain poorly described.
John Peacock, Serjoscha W. Evers, Tiago R. Simões, Garth M. Spellman, Daniel J. Field   +4 more
wiley   +1 more source

A Proposal Towards a Dutch Caribbean Marine Mammal Sanctuary

, 2011
Based on the goals set forth in the Dutch Biodiversity Policy Programme, The Netherlands has a traditionally strong commitment to protect biodiversity and marine mammals both internationally and in its own national and Kingdom waters.
Lucke, K., Scheidat, M., Debrot, A.O., Witte, R.H.   +3 more
core  

Competition between marine mammals and fisheries in contemporary harvested marine ecosystems [PDF]

, 2018
Competitive interactions between marine mammals and fisheries represent some of the most complex challenges in marine resource management worldwide. The development of commercial fisheries and recovering marine mammal populations have contributed to a ...
Jusufovski, Dunja, D Jusufovski, Jusufovski, D., Saavedra, C. (Camilo), Saavedra, Camilo, C Saavedra, Kuparinen, A. (Anna), Saavedra, C., Kuparinen, Anna, A Kuparinen, Jusufovski, D. (Dunja)   +10 more
core   +1 more source

Drivers of tail evolution in squamates and their implications for the fossorial origin of snakes

The Anatomical Record, EarlyView.
Abstract The axial skeleton serves as the primary structural support in all vertebrates and is subdivided into five distinct regions: cervical, thoracic, lumbar, sacral, and caudal. Relaxation of constraints acting on the terminal end of the axial skeleton has led to remarkable variation in caudal vertebrae number across Squamata.
Olivia Binfield, Marco Camaiti, Lucy Roberts   +2 more
wiley   +1 more source

Different shape but the same topographical complexity—The lingual gross anatomy of the Saimaa (Pusa saimensis) and Baltic ringed seals (Pusa hispida botnica)

The Anatomical Record, EarlyView.
Abstract Despite the distinctly different shapes of their tongues, the tongue gross anatomy of Saimaa ringed seal closely resembled that of Baltic ringed seal. There were no differences in the extrinsic and intrinsic tongue muscles or their associated vascularization and innervation between Saimaa and Baltic ringed seals.
Juha Laakkonen, Heini Nihtilä
wiley   +1 more source

Survival strategies of marine mammals in extreme environments: A study of whales and seals [PDF]

BIO Web of Conferences
Extreme environments, characterized by challenges such as sub-zero temperatures, limited sunlight and scarce resources, pose great challenges to organisms, including marine mammals.
Aulia Chairunnisa, Maulina Jesica, Edelwis Tri Widya, Girace Joseph   +3 more
doaj   +1 more source

Geometric factors influencing the diet of vertebrate predators in marine and terrestrial environments

, 2014
Predator–prey relationships are vital to ecosystem function and there is a need for greater predictive understanding of these interactions. We develop a geometric foraging model predicting minimum prey size scaling in marine and terrestrial vertebrate ...
Carbone, C, Codron, D, Clauss, M, Scofield, C, Bielby, J   +4 more
core  

Histological Characterization and Comparative Transcriptomic Analysis of Gonads During Early Sex Differentiation in the Northern Snakehead (Channa argus)

Animal Research and One Health, EarlyView.
This study delineates the early sex differentiation timeline in the northern snakehead (Channa argus). These findings provide a foundation for future sex‐control breeding in this economically important species. ABSTRACT The northern snakehead (Channa argus) is an economically important aquaculture species in China.
Chaonan Sun, Donglei Sun, Haishen Wen, Xin Qi, Chao Li, Xiaoyan Zhang, Yun Li   +6 more
wiley   +1 more source

Interbreeding area movement of an adult humpback whale between the east Pacific Ocean and southwest Indian Ocean

Royal Society Open Science
Humpback whales undertake one of the longest known migrations of any mammal. While their migration route generally extends between latitudes, the breeding stocks are longitudinally separated and display high site fidelity to their feeding grounds.
Ekaterina Kalashnikova, Natalia Botero-Acosta, Esteban Duque Mesa, Mar Palanca Gascón, Patrick Lyne, Ted Cheeseman, Alex Vogel, Amy Kennedy, Aylin Akkaya   +8 more
doaj   +1 more source

Blood rheology in marine mammals

Frontiers in Physiology, 2010
The field of blood oxygen transport and delivery to tissues has been studied by comparative physiologists for many decades. Within this general area, the particular differences in oxygen delivery between marine and terrestrial mammals has focused mainly ...
Michael Castellini, Oguz Baskurt, Judith M Castellini, Herbert J Meiselman   +3 more
doaj   +1 more source