Results 21 to 30 of about 8,963 (213)

FIG. 22 in New Fossil Giant Panda Relatives (Ailuropodinae, Ursidae): A Basal Lineage of Gigantic Mio-Pliocene Cursorial Carnivores

open access: yes, 2023
FIG. 22. Chronology of Agriotheriini (Ailuropodinae, Ursidae).Published as part of Jiangzuo, Qigao, Flynn, John J., Wang, Shiqi, Hou, Sukuan & Deng, Tao, 2023, New Fossil Giant Panda Relatives (Ailuropodinae, Ursidae): A Basal Lineage of Gigantic Mio ...
Flynn, John J.   +4 more
core   +1 more source

Una nueva especie de Adelpharctos (Mammalia, Carnivora, Ursidae) del Oligoceno Superior de las “Fosforitas de Quercy” (Francia)

open access: yesEstudios Geologicos, 2011
El género Adelpharctos era solo conocido por una especie A. mirus representada por una única mandibular (p2-m2) procedente de las colecciones antiguas del Quercy, cuya edad geológica es desconocida.
L. de Bonis
doaj   +1 more source

Sertoli Cell Tumor (SCT) in a Captive Black Bear (Ursus americanus)

open access: yesVeterinary Sciences, 2019
A black bear of 29-year-old (Ursus americanus) died unexpectedly in captivity without any gross lesions or clinical signs. We identified a firm, lobulated, yellowish tan, and well-circumscribed mass embedded inside the testicular tissue at the time of ...
Ahmed K. Elfadl   +14 more
doaj   +1 more source

Phylogenetic signal analysis in the basicranium of Ursidae (Carnivora, Mammalia) [PDF]

open access: yes, 2021
Ursidae is a monophyletic group comprised of three subfamilies: Tremarctinae, Ursinae and Ailuropodinae, all of which have a rich geographical distribution.
Soibelzon, Leopoldo Héctor   +3 more
core  

Screening for the ancient polar bear mitochondrial genome reveals low integration of mitochondrial pseudogenes (numts) in bears

open access: yesMitochondrial DNA. Part B. Resources, 2017
Phylogenetic analyses of nuclear and mitochondrial genomes indicate that polar bears captured the brown bear mitochondrial genome 160,000 years ago, leading to an extinction of the original polar bear mitochondrial genome.
Fritjof Lammers   +4 more
doaj   +1 more source

First described case of self-inflicted injury in a brown bear (Ursus arctos Linnaeus, 1758) following capture with an Aldrich snare

open access: yesHistoria Naturalis Bulgarica, 2023
Trapping bears (Ursidae) with Aldrich leg snares has established itself as one of the most successful methods of trapping live animals with minimal injury.
Vladimir R. Todorov, Angel Dyugmedzhiev
doaj   +1 more source

Analysis of complete mitochondrial genome sequences increases phylogenetic resolution of bears (Ursidae), a mammalian family that experienced rapid speciation

open access: yesBMC Evolutionary Biology, 2007
Background Despite the small number of ursid species, bear phylogeny has long been a focus of study due to their conservation value, as all bear genera have been classified as endangered at either the species or subspecies level.
Ryder Oliver A   +3 more
doaj   +1 more source

Ursodeoxycholic acid in the Ursidae: biliary bile acids of bears, pandas, and related carnivores.

open access: yesJournal of Lipid Research, 1993
The biliary bile acid composition of gallbladder bile obtained from six species of bears (Ursidae), the Giant panda, the Red panda, and 11 related carnivores were determined by reversed phase liquid chromatography and gas chromatography-mass spectrometry.
LR Hagey   +5 more
doaj   +1 more source

First record of a complete humerus of Agriotherium (mammalia-ursidae) from the early-late Hemphillian of Zacatecas, Mexico

open access: yesRevista Mexicana de Ciencias Geológicas, 2023
A complete humerus referred to Agriotherium is described, collected from early-late Hemphillian deposits from Zacatecas. Agriotherium is widely represented by isolated molars, mandibles, and maxillae in early-late Hemphillian faunas of Eurasia and North ...
Oscar Carranza-Castañeda, Xiaoming Wang
doaj   +1 more source

Huéspedes definitivos de Spirometra mansonoides (Cestoda, Diphyllobothriidae) en el Perú

open access: yesRevista Peruana de Biología, 2013
Se realizó un estudio parasitológico en el zoológico Parque de Las Leyendas, Lima, Perú en el año de 1993. Se recolectaron 49 muestras de heces de carnívoros pertenecientes a cinco familias: Canidae, Ursidae, Procyonidae, Mustelidae y Felidae, éstas ...
Manuel Tantaleán, Carmen Michaud
doaj   +1 more source

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