polar bear

n.

北极熊；

复数：polar bears

Polar Bear Maternity Denning in the Beaufort Sea
Polar Bear Diets and Arctic Marine Food Webs: Insights from Fatty Acid Analysis
Polar bear predation of ringed and bearded seals in the land-fast sea ice habitat.
Genetic structure of the world’s polar bear populations
Comparative hunting abilities of polar bear cubs of different ages
Genetic structure of the world’s polar bear populations
Predicting 21st-century polar bear habitat distribution from global climate models
Fitting the von Bertalanffy growth equation to polar bear age–weight data
Relationships between estimates of ringed seal (Phoca hispida) and polar bear (Ursus maritimus) populations in the Canadian Arctic
Conservation of the sequence of the Alzheimer's disease amyloid peptide in dog, polar bear and five other mammals by cross-species p...