A total of 91 free-ranging black bears (Ursus americanus) from the Peace River region of northwestern Alberta was examined for helminths. Four species, Baylisascaris transfuga, Taenia krabbei, Taenia hydatigena and Dirofilaria ursi, were found. None of the bears was heavily infected. Results are compared with other similar North American surveys.
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K H Dies (1979) studied this question.
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