Results 71 to 80 of about 10,503 (218)

Direct Contact Among Galactic Civilizations by Relativistic Interstellar Spaceflight [PDF]

open access: yes, 1962
Direct contact among galactic populations by relativistic interstellar ...
Sagan, Carl
core   +1 more source

First At‐Sea Identifications of Ginkgo‐Toothed Beaked Whale (Mesoplodon ginkgodens): Acoustics, Genetics, and Biological Observations Off Baja California, México

open access: yesMarine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT In 2024, an expedition was conducted off northwestern Baja California, México, to find and identify the beaked whale species that produced the BW43 echolocation pulse previously recorded in this area and elsewhere in the North Pacific. There were five Mesoplodon sightings and 21 BW43 acoustic detections on both a towed array and drifting pole ...
E. Elizabeth Henderson   +14 more
wiley   +1 more source

Nuevo registro de un cachalote (Physeter macrocephalus) varado y una revisión de varamientos en las costas de Argentina continental [PDF]

open access: yes, 2011
Presentamos un nuevo registro de un cachalote, con notas sobre la dieta, la determinación de edad y la presencia de parásitos, junto con una revisión de los varamientos a lo largo de toda la costa continental argentina.
Crespo, Enrique Alberto   +8 more
core  

Review of the tetrapod skull–neck boundary: implications for the evolution of the atlas–axis complex

open access: yesBiological Reviews, Volume 100, Issue 6, Page 2435-2470, December 2025.
ABSTRACT This review describes variation in modern and fossil occiput–atlas–axis complex anatomy of total group Tetrapoda with the aim of documenting the range of structural variation throughout their evolutionary history to establish grounds for comparison of the complex between tetrapod clades.
Dana E. Korneisel, Hillary C. Maddin
wiley   +1 more source

New light on the trophic ecology of Carcharodon hastalis from teeth embedded in Miocene cetacean vertebrae from Calvert Cliffs in Maryland, USA

open access: yesActa Palaeontologica Polonica
Recent isotopic analyses of the teeth of the extinct lamnid Carcharodon hastalis showed that it fed at a comparable trophic level as was the fossil and modern great white shark, Carcharodon carcharias. Although there are many examples of shark bite marks
Stephen J. Godfrey   +5 more
doaj   +1 more source

Primeiros registros de encalhe de Ziphius cavirostris (Cetacea, Odontoceti) na costa do Espírito Santo, Brasil

open access: yesBiotemas, 2010
O presente trabalho reúne os primeiros registros de encalhe de Ziphius cavirostris (Ziphius cavirostris Cuvier, 1823) (Cetacea, Odontoceti) no Estado do Espírito Santo, Brasil.
Luis Felipe Silva Pereira Mayorga   +2 more
doaj   +1 more source

Anatomy and morphology adaptation of sea mammals [PDF]

open access: yes, 2010
Morski sisavci uključuju dvije brojne i široke grupe, Cetacea (kitovi) i Pinnipedia (tuljani, morski lavovi i morževi), te manje brojnu grupu Sirenia. Svaka grupa morskih sisavaca je evoluirala od pretka na kopnu te se sekundarno vratila životu u vodi ...
Blažeković, Kristina
core   +2 more sources

Order Cetacea

open access: yes, 1982
James H. Honacki, Kenneth E. Kinman, James W. Koeppl (1982): Order Cetacea. In: James H. Honacki, Kenneth E. Kinman, James W. Koeppl (Eds): Mammal Species of the World (1st Edition). Lawrence, Kansas, USA: Alien Press, Inc. & The Association of Systematics Collections: 290-304, ISBN: 0-89327-235-3, DOI: http://doi.org/10.5281/zenodo ...
Honacki, James H.   +2 more
openaire   +2 more sources

Population Genomics and the Environmental Drivers of Population Structure in a Cosmopolitan Marine Predator, Tursiops truncatus

open access: yesMolecular Ecology, Volume 34, Issue 24, December 2025.
ABSTRACT The marine environment comprises vast regions without physical barriers to movement, making the understanding of population isolation and the evolution of diversity challenging. This is especially the case for highly mobile marine species.
Daniel M. Moore   +11 more
wiley   +1 more source

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