Previous research on the effect of wolves on the food web has been criticized, raising questions about the predator’s role in ...

Scientific research has long assumed gray wolves are non-migratory during springtime, staying anchored to tend to litters of nearly helpless pups. For the first weeks of life, after all, pups are ...

BILLINGS, Mont. - When young elk die on Yellowstone National Park's northern range, more often than not the killers are bears, not wolves, according to results of a three-year study.

Up until the mid-1990s, the ecosystem of Yellowstone National Park had turned into a gloomy, barren land, overgrazed and overpopulated by elk. But ever since wolves were reintroduced in the park, the ...