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One of the traits of Ursus americanus pugnax or the Dall Island Black Bear that differs it from other black bears is that its skull
is broader and heavier with flattened frontal bones. It is also known as the Island Black Bear
and the Dall Black Bear because they are found on Dall Island in Alaska. No brown bears are known to reside here.
The Ursus americanus pugnax was named a separate subspecies in 1911 by ornithologist
Harry S. Swarth.
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