1. Furthermore the daily movements of sloth (20) bears and American black bears which are similar in size to sloth bears and have similar-sized home ranges reveal similar travel rates and distances suggesting that if black bear cubs are able to (26) keep up with their mother so too should sloth bear cubs.
另外，懒熊每天的运动和与懒熊有着相似尺寸并居住范围也大致相同的美国黑熊每天的运动揭示出相似的运动率和运动距离，也就是说如果黑熊幼崽能够保持和它们的母亲一致，懒熊幼崽也应该可以。
2. Reddish-brown color phase of the American black bear.
有点带褐色的深黑色。红褐色时期的美洲黑熊。
3. Brown to black North American bear; smaller and less ferocious than the brown bear.
产于北美洲的黑色熊；比棕熊小且不及棕熊凶恶。
4. A variety of the North American black bear (Ursus americanus) that has a reddish-brown coat.
红褐色北美黑熊，棕熊：一种北美洲黑熊（肉桂熊棕熊属），有红棕色毛皮。