Lumbar laminectomy in a captive, adult polar bear (Ursus maritimus).
Surg Neurol Int, 2017 Animals held in captivity tend to live longer than do their wild counterparts, and as such, are prone to developing age-related degenerative injuries. Here, we present a case of an adult female polar bear with symptomatic lumbar stenosis. There is a paucity of literature on large mammalian spine surgery, and anatomical differences between humans and ...
Morrison JF, Vakharia K, Moreland DB.
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Modeling the demography of species providing extended parental care: A capture-recapture multievent model with a case study on polar bears (Ursus maritimus). [PDF]
Ecol Evol, 2021 Cubaynes S +6 more
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Testosterone concentrations in juvenile male polar bears (Ursus maritimus)
Theriogenology WildThe ex situ polar bear population in the United States is not sustainable. Current management practices include pairing mates at five to six years of age, but there is evidence that wild bears have sired cubs as early as two years old. Timing acquisition
Jessye Wojtusik +5 more
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Bacterial diversity in faeces from polar bear (
BMC Microbiology, 2010 Background Polar bears (Ursus maritimus) are major predators in the Arctic marine ecosystem, feeding mainly on seals, and living closely associated with sea ice.
Brusetti Lorenzo +6 more
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Polar bears and expanding sea ice in the Mid Holocene Aleutian Islands, Alaska [PDF]
Scientific ReportsThe archaeological record offers the opportunity to infer the effects of regional climatic shifts on species distributions and human-animal interactions.
Lillian Draper Parker +7 more
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Viral discovery in captive polar bears (Ursus maritimus)
, 2014 In 2010, two co-housed polar bears (Ursus maritimus) in the Wuppertal Zoological Garden exhibited seizures that led to the death of the female polar bear Jerka, 8 days later. The male polar bear Lars, survived after receiving medical treatment. Knut, the son of Lars, of the Berlin Zoological Garden also suffered seizures and drowned in 2011.
Kyriakos Tsangaras
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Windscapes and olfactory foraging among polar bears (Ursus maritimus)
, 2017 Understanding strategies for maximizing foraging efficiency is central to behavioural ecology. The theoretical optimal olfactory search is crosswind, however empirical evidence of anemotaxis (orientation to wind) among carnivores is sparse. Polar bear (Ursus maritimus) is a sea ice dependent species that relies on olfaction to locate prey.
Ron R Taoogunov
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Ursus maritimus, Polar Bear [Pl. XCI, male]
The quadrupeds of North AmericaJohn James Audubon, John Bachman
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Patterns and temporal trends in canine breakage and scarring in Western Hudson Bay polar bears (Ursus maritimus). [PDF]
PLoS OneTremblay SS +4 more
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Members of the family Ursidae in the Museum of Nature of Kharkiv University and their craniological features [PDF]
Theriologia Ukrainica, 2019 The exhibition and scientific collection of the Museum of Nature currently deposit 16 specimens of the family Ursidae (bears), which belong to three species and 6 subspecies.
Yuriy Iliukhin
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