Grizzly Bear or Brown Bear
Health Issues Which May Affect This Animal
What Causes This Disease?Trichinosis is a disease caused by a nematode parasite, Trichinella spiralis.
Where Is The Disease Found?Trichinosis occurs throughout North American and can be found in grizzly bears, polar bears, black bears, feral swine, mountain lions, wolverines, wolves, coyotes, and foxes. Trichinosis has been documented in black bears and mountain lions in Idaho. Trichinosis has been documented in humans associated with consuming home-made jerky made from a cougar and a black bear in Idaho.
Signs of DiseaseAnimals infected with trichinosis generally appear healthy. Trichinosis is hard to detect when butchering because there are few lesions and the cysts are very small. The cysts are most common in the muscles of the jaw, tongue, and diaphragm. Animals that are infected with adult worms may have swollen intestines with small bruises on the intestinal wall. Affected muscles and associated lymph nodes may be soft and swollen.
Read More About Trichinosis
October 7, 2020 - 3:50 PM MDT
September 9, 2020 - 4:04 PM MDT
Two archery hunters were attacked after what they described as a surprise encounter with a sow grizzly bear with cubs in the Apache Ridge area of the Upper Pack River drainage. One of the men was injured and has been released from the hospital with stitches.
August 3, 2020 - 9:17 AM MDT
May 26, 2020 - 7:06 PM MDT
Biologists from Idaho Fish and Game will begin annual research trapping efforts for grizzly bears in the Upper Snake Region on May 31. To avoid conflicts with hunters, current operations will be confined to areas where hunting is prohibited. Larger scale operations will begin July 1, in the Caribou-Targhee National Forest within the caldera in Island Park, west of Highway 20 along the Centennial Mountain Range, and in the Cave Falls and Teton areas near the Wyoming border.
May 18, 2020 - 11:55 AM MDT
A sow grizzly and her yearling cub were captured by Fish and Game staff Sunday, May 17, in the Yale Creek area of Island Park after the bears were seen getting into garbage.
April 22, 2020 - 2:04 PM MDT
Fresh grizzly bear tracks were confirmed by a Fish and Game conservation officer in the Fish Creek Meadows winter recreation area about 7 miles south of Grangeville on April 18, 2020. It is uncertain if the grizzly is still be in the area or has moved on.