Results 61 to 70 of about 2,162 (213)

Innervation patterns of sea otter (Enhydra lutris) mystacial follicle-sinus complexes [PDF]

, 2014
Sea otters (Enhydra lutris) are the most recent group of mammals to return to the sea, and may exemplify divergent somatosensory tactile systems among mammals.
Andres, Armed Forces Institute of Pathology, Armed Forces Institute of Pathology, Berta, Bininda-Emonds, Brecht, Brian Kot, Burgess, Catania, Christopher D. Marshall, Czech-Damal, Davidson, Dehnhardt, Dehnhardt, Dehnhardt, Dehnhardt, Dehnhardt, Dehnhardt, Duplaix, Dykes, Ebara, Erdsack, Estes, Estes, Fay, Finarelli, Gaspard, George, Ginter, Ginter, Gottschaldt, Grant, Halata, Halata, Halata, Hanke, Hyvärinen, Hyvärinen, Hyvärinen, Hyvärinen, Jacques, Kastelein, Kastelein, Kelly Rozas, Kenyon, Kvitek, Ladygina, Lee, Leffler, Ling, Lyras, Marshall, Marshall, Marshall, Mauck, McGovern, Melaragno, Mitchell, Pinto Hamuy, Radinsky, Radinsky, Radinsky, Reep, Reep, Reep, Reep, Repenning, Rice, Rice, Rice, Riedman, Sarko, Sivasothi, Stephens, Timm, Van Zyll de Jong, Verena A. Gill, Welker, Welker, Welker, Welker, Wilson, Woolsey, Yablokov, Yeates   +84 more
core   +1 more source

Population density of Sotalia guianensis (Cetacea: Delphinidae) in the Cananéia region, Southeastern Brazil

Revista de Biología Tropical, 2010
Population density in cetaceans can be estimated through photo-identification, mark-recapture, land-based observations and visual estimative. We the aim to contribute with conservation strategies, we used line transects (distance method) to estimate the population density of the river dolphin, S.
Havukainen, Liisa, Leite de Araujo Monteiro Filho, Emygdio, de Fatima Filla, Gislaine   +2 more
openaire   +8 more sources

Synapsids and sensitivity: Broad survey of tetrapod trigeminal canal morphology supports an evolutionary trend of increasing facial tactile specialization in the mammal lineage

The Anatomical Record, Volume 309, Issue 4, Page 864-911, April 2026.
Abstract The trigeminus nerve (cranial nerve V) is a large and significant conduit of sensory information from the face to the brain, with its three branches extending over the head to innervate a wide variety of integumentary sensory receptors, primarily tactile.
Juri A. Miyamae, Julien Benoit, Irina Ruf, Zoleka Sibiya, Bhart‐Anjan S. Bhullar   +4 more
wiley   +1 more source

Coordinated feeding behavior of the Guiana dolphin, Sotalia guianensis (Cetacea: Delphinidae), in southeastern Brazil: a comparison between populations

Zoologia (Curitiba), 2013
The coordinated feeding tactics used by delphinids are influenced by differences in the distribution of prey species, season, and opportunities for social learning.
Elaine C. da S. Oliveira, Rodrigo H. Tardin, Fabiana R. Poletto, Sheila M. Simão   +3 more
doaj   +1 more source

Phylogenetic review of tonal sound production in whales in relation to sociality [PDF]

, 2007
Background It is widely held that in toothed whales, high frequency tonal sounds called \u27whistles\u27 evolved in association with \u27sociality\u27 because in delphinids they are used in a social context.
Laura J May-Collado, Ingi Agnarsson, Douglas Wartzok   +2 more
core   +1 more source

Ontogeny of the skull of Sotalia guianensis (Cetartiodactyla: Delphinidae) on the Northern coast of Brazil

Iheringia. Série Zoologia, 2020
ABSTRACT This study aimed to investigate the ontogenetic development of the skull in the Guiana dolphin (Sotalia guianensis Van Bénéden, 1864 ) through the comparison of 29 morphological non-metrical characters together with the estimated age of 54 specimens derived from four areas on the northern coast of Brazil.
Renata F. Novais, Salvatore Siciliano, Renata Emin-Lima, José S. Silva Júnior   +3 more
openaire   +4 more sources

TAXONOMIC STATUS OF THE GENUSSOTALIA: SPECIES LEVEL RANKING FOR “TUCUXI” (SOTALIA FLUVIATILIS) AND “COSTERO” (SOTALIA GUIANENSIS) DOLPHINS [PDF]

Marine Mammal Science, 2007
AbstractDolphins of the genusSotaliaare found along the Caribbean and Atlantic coasts of Central and South America and in the Amazon River and most of its tributaries. At present, the taxonomy of these dolphins remains unresolved. Although five species were described in the late 1800s, only one species is recognized currently (Sotalia fluviatilis) with
Caballero, S., Trujillo, F., Vianna, J. A., Barrios-Garrido, H., Montiel, M. G., Beltran-Pedreros, S., Marmontel, M., Santos, M. C., Rossi-Santos, M., Santos, F. R., Baker, C. S.   +10 more
openaire   +2 more sources

Abundance and Seasonal Dynamics of Guiana Dolphins (Sotalia guianensis) in Southern Brazilian Estuarine and Adjacent Coastal Waters

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.
ABSTRACT Estimating population parameters is crucial for understanding species dynamics and assessing anthropogenic impacts, thereby supporting conservation efforts. We evaluate key population parameters—group structure, abundance and capture–recapture probabilities—of the Guiana dolphin in the Paranaguá Estuarine Complex and adjacent coastal waters ...
Stephane P. G. de Moura, Mauricio Cantor, Ana Carolina Oliveira de Meirelles, Camila Domit   +3 more
wiley   +1 more source

Alterações senil-degenerativas e variações anatômicas na coluna vertebral de pequenos cetáceos

Biotemas, 1999
Apresenta-se uma visão comparativa das alterações senil-degenerativas e anomalias anatômicas da coluna vertebral de oito espécies de pequenos cetáceos: Tursiops truncatus (Montagu, 1821); Steno bredanensis (Lesson, 1823); Sotalia fluviatilis guianensis ...
Maria Heloísa B. C. Furtado, Paulo César Simões-Lopes   +1 more
doaj  

Variation of age and total length in Sotalia guianensis (Van Bénéden, 1864) (Cetacea, Delphinidae), on the coast of Espírito Santo state, Brazil

Brazilian Journal of Biology
Variations of age and total length of Sotalia guianensis from the state of Espírito Santo, Brazil, were evaluated. Specimens were found stranded. Age and total length of 44 Guiana dolphins were assessed based on tooth analysis.
J. Y. Lima, A. P. M. Carvalho, C. T. Azevedo, L. A. Barbosa, L. S. Silveira   +4 more
doaj   +1 more source