Body and Diet Composition of Sympatric Black and Grizzly Bears in the Greater Yellowstone Ecosystem The Greater Yellowstone Ecosystem (GYE) has experienced changes in the distribution and availability of grizzly bear (Ursus arctos) food resources in recen... CC Schwartz,JK Fortin,JE Teisberg,......
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skip to main content infrared imaging helps save yellowstone's wolves scientists are using thermal imaging to track yellowstone's wolves, which are facing a vicious new predator: sarcoptic mange. image: katie haase/usgs save save also in this issue the wolf population in yellowstone national park...