More gray wolves mean more pronghorn antelope in the Yellowstone area, according to researchers who say the region's rebounding wolf population is killing and scaring off coyotes that otherwise prey on pronghorn.The researchers said that during a three-year study, pronghorn fawns were three times more likely to survive in areas dominated by wolves versus those ruled by coyotes. That's because wolves favor larger prey, such as elk or cattle, and generally leave pronghorn alone.
Source: National Geographic
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