American black bear (Ursus americanus) vs grizzly bear (Ursus arctos ssp.)


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送交者: jhuang 于 2018-07-15, 21:46:43:

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Black bears can be black, blue-black, dark brown, brown, cinnamon and even white. Grizzlies, likewise, may range in colour, from black to blond. Although grizzly bears are, on average, significantly larger than black bears, size is not a good indicator of which species is which. Male black bears in Manitoba’s Riding Mountain National Park, for instance, can weigh up to 800 pounds in the fall, and female grizzly bears on Alberta’s Eastern Slopes can weigh as little as 250 pounds in the spring.

The best indicators are the size of the shoulders, the profile of the face and the length of the claws. The grizzly bear has a pronounced shoulder hump, which the black bear lacks. It also has a concave or “dished” facial profile, smaller ears and much larger claws than the black bear. Black bears have a flatter, “Roman-nose” profile, larger ears, no visible shoulder hump and smaller claws.





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