Results 21 to 30 of about 7,687 (133)

Sequencing and assembling bear genomes: the bare necessities

Frontiers in Zoology, 2022
Unique genetic adaptations are present in bears of every species across the world. From (nearly) shutting down important organs during hibernation to preventing harm from lifestyles that could easily cause metabolic diseases in humans, bears may hold the
Courtney Willey, Ron Korstanje
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Una nueva especie de Adelpharctos (Mammalia, Carnivora, Ursidae) del Oligoceno Superior de las “Fosforitas de Quercy” (Francia)

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

Veterinary 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, SunYoung Park, H M Arif Ullah, Soong-Hee Youn, Myung-Jin Chung, Ji-Yoon Son, Jae-Yeong Lee, Seoung-Woo Lee, A-Rang Lee, Su-Min Baek, Sul-Gi Jeon, Eun-Joo Lee, Il-Hwa Hong, Jin-Kyu Park, Kyu-Shik Jeong   +14 more
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First described case of self-inflicted injury in a brown bear (Ursus arctos Linnaeus, 1758) following capture with an Aldrich snare

Historia 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

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

Mitochondrial 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, Axel Janke, Cornelia Rücklé, Vera Zizka, Maria A. Nilsson   +4 more
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Analysis of complete mitochondrial genome sequences increases phylogenetic resolution of bears (Ursidae), a mammalian family that experienced rapid speciation

BMC 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, Li Yi-Wei, Yu Li, Zhang Ya-Ping   +3 more
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First record of a complete humerus of Agriotherium (mammalia-ursidae) from the early-late Hemphillian of Zacatecas, Mexico

Revista 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

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

Journal 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, DL Crombie, E Espinosa, MC Carey, H Igimi, AF Hofmann   +5 more
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Viviendo en los Andes: registros notables de la distribución altitudinal del oso andino, Tremarctos ornatus (Ursidae) en Boyacá, Colombia

Arxius de Miscel-lània Zoològica, 2020
Vivint als Andes: registres notables de la distribució altitudinal de l’os andí Tremarctos ornatus (Ursidae) a Boyacá, Colòmbia Malgrat la importància d’aquesta espècie, l’os andí encara presenta importants buits d’informació pel que fa a distribució.
C. H. Cáceres–Martínez, C. Y. Rivera–Torres, H. A. López–Orjuela, J. G. Zamora–Abrego, J. F. González–Maya   +4 more
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Development of short‐target primers for species identification in biological studies of Carnivora

Ecology and Evolution, 2023
Noninvasive genetic sampling greatly facilitates studies on the genetics, ecology, and conservation of threatened species. Species identification is often a prerequisite for noninvasive sampling‐based biological studies.
Huiwen Liu, Dan Wang, Chenglin Zhang, Tianchun Pu, Lijuan Xiong, Fuwen Wei, Yibo Hu   +6 more
doaj   +1 more source