Error message
Unable to fetch location details at this time.
Grizzly Bear
Ursus arctos horribilis
39.7493, -104.95
Field Notes
Description:
Spotted at the Denver Zoo, also known as the silvertip bear, the grizzly, or the North American brown bear, is a subspecies of brown bear (Ursus arctos) that generally lives in the uplands of western North America. This subspecies is thought to descend from Ussuri brown bears which crossed to Alaska from eastern Russia 100,000 years ago, though they did not move south until 13,000 years ago.[1]
A pronounced hump appears on their shoulders; the hump is a good way to distinguish a black bear from a grizzly bear, as black bears do not have this hump.
Habitat:
Brown bears are found in Asia, Europe and North America giving them one of the widest ranges of bear species. The ancestors of the grizzly bear originated in Eurasia and travelled to North America approximately 50,000 years ago.[7] This is a very recent event in evolutionary time, causing the North American grizzly bear to be very similar to the brown bears inhabiting Europe and Asia.
In North America, grizzly bears previously ranged from Alaska to Mexico and as far east as the Hudson Bay area.[7] In North America, the species is now found only in Alaska, south through much of western Canada, and into portions of the northwestern United States including Idaho, Montana, Washington and Wyoming, extending as far south as Yellowstone and Grand Teton National Parks, but is most commonly found in Canada.
Notes:
This spotting qualifies for the NWF: Wildlife Watch mission due to it's size vs speed.
Match a grizzly against the fastest human in a100-yard dash and who would win? The grizzly bear- crossing the finish line 35 yards ahead!
Comments (2)