Results 81 to 90 of about 7,676 (261)
Work minimization accounts for footfall phasing in slow quadrupedal gaits [PDF]
, 2017 Quadrupeds, like most bipeds, tend to walk with an even left/right footfall timing. However, the phasing between hind and forelimbs shows considerable variation.
Self Davies, Z T, Usherwood, J R
core +2 more sources
Hybridization and Immunology in Animals: A Review
Ecology and Evolution, Volume 16, Issue 4, April 2026.Hybridization can reshape immune function by introducing novel genetic variation and combining parental immune traits. Across animal taxa, this process may influence resistance, tolerance, and pathogen dynamics, with important implications for disease ecology and One Health.
Cheyenne R. Graham +3 more
wiley +1 more source
Enhanced biological processes associated with alopecia in polar bears (Ursus maritimus) [PDF]
Science of The Total Environment, 2015 Populations of wildlife species worldwide experience incidents of mass morbidity and mortality. Primary or secondary drivers of these events may escape classical detection methods for identifying microbial insults, toxin exposure, or additional stressors.
Lizabeth, Bowen +4 more
openaire +2 more sources
Ground‐truthing of satellite imagery to assess seabird colony size: A test using Adélie penguins
Remote Sensing in Ecology and Conservation, Volume 12, Issue 2, Page 305-317, April 2026.Adélie penguin colony size can be estimated from space using very high‐resolution (VHR; 0.3–0.6 m resolution) satellite imagery due to the contrast between their guano stain and the surrounding terrain. Our study assessed the utility of VHR imagery for making indirect assessments of changes in colony size.
Alexandra J. Strang +9 more
wiley +1 more source
Arctic Science, 2020 The paucity of observations of wild polar bears (Ursus maritimus) caching of food (including hoarding, i.e., burying and remaining with a kill for up to a few days) has led to the conclusion that such behavior does not occur or is negligible in this ...
Ian Stirling +3 more
doaj +1 more source
The European descendants of Ursus etruscus C. Cuvier (Mammalia, Carnivora, Ursidae). [PDF]
, 1992 En este trabajo se revisan el origen, evolucion y distribucion estratigrafica de los osos del Pleistoceno. IS. ruscinensis DEP. puede considerarse como e! ancestro comun: de el derivaria un grupo muy conservador (U. mediterraneus F.
Torres Pérez-Hidalgo, Trinidad José
core +1 more source
Using blubber explants to investigate adipose function in grey seals:glycolytic, lipolytic and gene expression responses to glucose and hydrocortisone [PDF]
, 2017 Adipose tissue is fundamental to energy balance, which underpins fitness and survival. Knowledge of adipose regulation in animals that undergo rapid fat deposition and mobilisation aids understanding of their energetic responses to rapid environmental ...
Bennett, Kimberley A. +4 more
core +3 more sources
Exploring dietary adaptations in Ursus minimus: a 3D geometric morphometric analysis of the mandible
Boreas, Volume 55, Issue 2, Page 443-453, April 2026.Using 3D geometric morphometrics, the dietary adaptations of the extinct Auvergne bear (Ursus minimus) are analysed. Its mandibular morphology aligns more closely with omnivorous rather than insectivorous bears, challenging current ideas. The extinct bear Ursus minimus, which lived in Europe during the Pliocene and possibly Early Pleistocene, is ...
Anneke H. van Heteren
wiley +1 more source
First recorded ice entrapment of a beluga whale (Delphinapterus leucas) in east Greenland
Polar ResearchBeluga whales are rare along the coast of east Greenland and the closest recognized stock occurs around Svalbard. Here we report on an ice entrapment of an adult beluga whale (Delphinapterus leucas) in north-east Greenland.
Kristin L. Laidre +4 more
doaj +1 more source
Boreas, Volume 55, Issue 2, Page 503-516, April 2026.Bears deviate from the inhibitory cascade model (ICM) during molar size evolution, with two significant deviations linked to changes in diet: Ursus minimus and Ursus deningeri. Many bears exhibit a ‘partial ICM’, highlighting the relationship between relative molar size, dietary adaptations and dental development across different species.
Anneke H. van Heteren, A. Stefanie Luft
wiley +1 more source