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Restoring predators, restoring ecosystems: Yellowstone wolves and other carnivores drive strong trophic cascadeWolves were eradicated and cougars driven to low numbers from Yellowstone National Park by the 1920s. Browsing by elk soon ...
In 1995 and 1996, some 70 years after Yellowstone’s last wolf howled its last howl, 31 wolves from western Canada were released from acclimation pens across the park. They took hold of the ...
Wild animals do not recognize park borders. Two of Yellowstone’s iconic species, bison and elk, spill seasonally—and naturally—beyond park boundaries looking for food. One is welcome.
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