Further, some clades of brown bear, as assessed by their mtDNA, are more closely related to polar bears than to other brown bears, meaning that the polar bear would not be a true species according to some species concepts.
Some clades of brown bear, as assessed by their mtDNA, are more closely related to polar bears than to other brown bears. This was further. The polar bear would not be a true species according to some species concepts. This is what other brown bears are meaning.