Results 111 to 120 of about 2,413 (172)
Complete Mitochondrial Genome Analysis Reveals Genetic Diversity in the Narrow-Ridged Finless Porpoise (<i>Neophocaena asiaeorientalis</i>) Across East Asian Waters. [PDF]
Ecol EvolKim S +7 more
europepmc +1 more source
Current species protection does not serve its porpoise-Knowledge gaps on the impact of pressures on the Critically Endangered Baltic Proper harbour porpoise population, and future recommendations for its protection. [PDF]
Ecol EvolKoschinski S +3 more
europepmc +1 more source
Seasonal and diel patterns in Black Sea harbour porpoise acoustic activity in 2020-2022. [PDF]
Ecol EvolIvanchikova J +15 more
europepmc +1 more source
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Scientific American, 2018
The article discusses a study by physicist Wenwu Cao and others, published in the journal "Physical Review Applied," which reveals ultra-efficient echolocation in porpoises due to structures in their foreheads involving air sacs, soft tissues and skull bones, that will help improve sonar system.
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The article discusses a study by physicist Wenwu Cao and others, published in the journal "Physical Review Applied," which reveals ultra-efficient echolocation in porpoises due to structures in their foreheads involving air sacs, soft tissues and skull bones, that will help improve sonar system.
openaire +2 more sources
Canadian Journal of Zoology, 1988
Speeds above which porpoising becomes energetically more economical than swimming are calculated from a hydro-mechanical model for Humboldt (Spheniscus humboldti) and emperor (Aptenodytes forsteri) penguins. Predicted minimum porpoising speeds for S. humboldti are significantly less than observed values. At low porpoising speeds time in air is low and
R. W. Blake, M. D. Smith
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Speeds above which porpoising becomes energetically more economical than swimming are calculated from a hydro-mechanical model for Humboldt (Spheniscus humboldti) and emperor (Aptenodytes forsteri) penguins. Predicted minimum porpoising speeds for S. humboldti are significantly less than observed values. At low porpoising speeds time in air is low and
R. W. Blake, M. D. Smith
openaire +1 more source
Sexual dimorphism of Dall's porpoise and harbor porpoise skulls
Mammalian Biology, 2013To evaluate and quantify sexual dimorphism of skull shape and assess the ontogenetic background for differences, samples of 134 harbor porpoise (Phocoena phocoena) and 85 Dall's porpoise (Phocoenoides dalli) were compared in terms of cranial shape and shape ontogeny using three-dimensional geometric morphometrics.
Frandsen, Marie Michele Schou +1 more
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Business Strategy Review, 1996
In the late 19h century, Alfred Marshall used a fish market as an example of a perfectly competitive market. A hundred years later, New York's Fulton Fish Market has many of the characteristics of a traditional and competitive fish market, despite the documented presence of Mafia involvement.
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In the late 19h century, Alfred Marshall used a fish market as an example of a perfectly competitive market. A hundred years later, New York's Fulton Fish Market has many of the characteristics of a traditional and competitive fish market, despite the documented presence of Mafia involvement.
openaire +1 more source