Results 21 to 30 of about 8,511 (214)

Presencia de Arctotherium (Carnivora, Ursidae, Tremarctinae) en un nivel pre-cultural de cueva Baño Nuevo-1 (Patagonia Central, Chile)

open access: yesEstudios Geologicos, 2015
Se presenta la descripción de un I3 asignado a Arctotherium sp. proveniente del sitio Baño Nuevo-1 (Patagonia Central, Chile). El hallazgo fue realizado en la Capa 5 y está asociado a restos de Macrauchenia sp., Lama guanicoe, Felidae, Camelidae, Equidae
P. López Mendoza   +2 more
doaj   +1 more source

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

open access: yesAmerican Museum Novitates, 2023
Among the fossil members of the giant panda subfamily of ursid carnivorans, Ailuropodinae, one group of species is of giant size, those of Indarctos. Indarctos species have some dental resemblances to and may be closely related to Agriotherium, although ...
Q. Jiangzuo   +4 more
semanticscholar   +1 more source

Sequencing and assembling bear genomes: the bare necessities

open access: yesFrontiers 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
doaj   +1 more source

Ursidae Gray 1825

open access: yes, 2023
Published as part of Gagnaison, Cyril, Mennecart, Bastien, Bailleul, Julien, Barrier, Pascal, Chenot, Élise, Toullec, Renaud, Potel, Sébastien, Martin, Honoré, Millet, Antoine & Memeteau, Didier, 2023, Nouvelles données géologiques et biostratigraphiques du gisement paléontologique à vertébrés de Mauvières, à Marcilly-sur-Maulne (Miocène inférieur et ...
Gagnaison, Cyril   +9 more
openaire   +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

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

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

Morphological and molecular identification of the hard ticks parasitizing Tremarctos ornatus (Carnivora: Ursidae) from paramo of Ecuador

open access: yesAcarological Studies, 2023
The Andean bear or spectacled bear, Tremarctos ornatus (Cuvier), inhabits the Andes and is considered an endangered species due to anthropogenic factors.
S. Enríquez   +4 more
semanticscholar   +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

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