For years, many conservationists have worried what grizzly bears in the greater Yellowstone ecosystem will eat as changing climate and habitat conditions bring fewer whitebark pine nuts, cutthroat trout and other prime food sources. A recent study offers an answer: almost anything else.
Research by several state and federal wildlife biologists found that grizzlies across the Yellowstone area eat a total of 266 different species of plants and animals, and display an amazingly adaptable diet that ranges from moths to algae.