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Current Issue: March 2014
Today, black bears (Ursus americanus) often find food in dumpsters. In the early to mid 20th century, however, black bears in California’s Yosemite National Park were deliberately fed by humans, primarily to promote tourism. Isotopic analysis of historical and modern tissue samples indicates that bear diets changed during the past 100 years in Yosemite, as different sources of anthropogenic foods were available.
New Jersey Dept of Environmental Protection, Division of Fish & Wildlife