Black bears don't like to pick fights, some experts say, because they live in the forest and prefer to avoid their enemies by hiding among the trees. They're not like grizzlies, which live on the open plains and are consequently less diffident about getting into scraps.
研究熊的專家奧格登．譚納所著的「熊與食肉動物」書中說，黑熊主要分佈在森林茂密的地方，早就學會利用濃密草木掩護避敵，漸形成不喜挑釁的性格；不像生長在大平原上的灰熊，因為無遮蔽，較易挺身爭鬥。