The polar bear (Ursus maritimus) is among the Arctic species exposed to the highest
concentrations of long-range transported bioaccumulative contaminants, such as …

Transcriptomics has emerged as a powerful approach for exploring physiological responses
to the environment. However, like any other experimental approach, transcriptomics has its …

Mitochondrial genes are widely used in taxonomy and systematics because high mutation
rates lead to rapid sequence divergence and because such changes have long been …

Increased land use by polar bears (Ursus maritimus) due to climate‐change‐induced
reduction of their sea‐ice habitat illustrates the impact of climate change on species …

Polar bears (Ursus maritimus) are expected to be adversely impacted by a warming Arctic
due to melting of the sea‐ice platform from which they hunt ice‐breeding seals. We …

Grizzly bears (Ursus arctos horribilis) have evolved remarkable metabolic adaptations
including enormous fat accumulation during the active season followed by fasting during …

Variation in mitochondrial DNA is often assumed to be neutral and is used to construct the
genealogical relationships among populations and species. However, if extant variation is …

The polar bear (Ursus maritimus) has become a symbol of the threat to biodiversity from
climate change. Understanding polar bear evolutionary history may provide insights into …

Polar bear (Ursus maritimus) and brown bear (Ursus arctos) are recently diverged species
that inhabit vastly differing habitats. Thus, analysis of the polar bear and brown bear …

Meiotic recombination is a highly conserved process that has profound effects on genome
evolution. At a fine-scale, recombination rates can vary drastically across genomes, often …