In Yellowstone’s Lamar Valley, wolves tear into an elk carcass in the predawn cold. Within hours, ravens descend. For decades ...

Two ravens soar above a wolf pack in Yellowstone. This type of short-distance trailing is common, but prolonged following is ...

Gray wolf pups are born nearly helpless: blind, deaf and lacking the acute sense of smell of their elders. They usually remain in the safe confines of their den until they are at least three weeks old ...

Wolf howls are dramatic, which popular culture, films, and television have long used to depict wilderness or danger. Now, the researchers at Yellowstone National Park want to learn wolf language ...

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In a new study, a UC Berkeley-led team of biologists observed gray wolves near Yellowstone National Park traveling 20 kilometers or more over rugged, mountainous terrain, with very young pups in tow.