Dietary ecology of Alaskan polar bears (Ursus maritimus) through time and in response to Arctic climate change
Ursus (SN)/Ursus (NP)
Genetic relationships of North American bears (Ursus) inferred from amplified fragment length polymorphisms and mitochondrial DNA sequences
Ursus arctos
Helminths of grizzly bears (Ursus arctos) and American black bears (Ursus americanus) in Alberta and British Columbia, Canada
Ursus
Use of camouflage materials as a food store by the spider crab Notomithrax ursus (Brachyura: Majidae)
Stable isotopes data (δ 13 C, δ 15 N) from the cave bear ( Ursus spelaeus ): a new approach to its palaeoenvironment and dormancy
Raimarus Ursus
Fueg, Ursus
