The grizzlyBB bearBB has a bad reputation amongstBB humansBB andanimalsBB alike, as the grizzlyBB bearBB is known to be aggressive and very territorial. Due to the grizzlyBB bearsBB size, there are no known North AmericanBB mammalsBB that would naturallyBB preyBB on the grizzlybear, making the grizzlyBB bearBB an extremely dominant predator.