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

It didn't come as a surprise to researchers that the re-introduction of wolves in certain parts of the northern U.S. would reduce deer and elk herds, and thus reduce automobile accidents with those ...

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 ...

Thirty years ago, park rangers reintroduced grey wolves into Yellowstone National Park. They wanted to restore the ecosystem and get the elk... What is the legacy of Yellowstone wolves 30 years after ...

A grey wolf prowls through Yellowstone National Park near Mammoth Hot Springs in Montana. A group of 66 wolves was reintroduced to Idaho and Yellowstone in the late 1990s. They now total 2,800 ...

The California Department of Fish and Wildlife (CDFW) announced that they will begin capturing deer, elk and wolves by helicopter to place GPS collars on them.

The California Department of Fish and Wildlife is gearing up to capture various wild animals in Northern California and outfit them with GPS collars to better track them, the agency said. Deer, elk ...

Get any of our free daily email newsletters — news headlines, opinion, e-edition, obituaries and more. Scientific research has long assumed gray wolves are non-migratory during springtime, staying ...