What key physical marker distinguishes the Brown Bear from the cinnamon-colored American Black Bear regarding the shoulders?

Answer

Brown Bears possess a distinctive, pronounced muscular hump over their shoulders, which cinnamon bears lack.

The absence of a pronounced muscular shoulder hump is a key differentiator; Brown Bears possess this hump, while American Black Bears, including the cinnamon phase, do not.

What key physical marker distinguishes the Brown Bear from the cinnamon-colored American Black Bear regarding the shoulders?
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