By Andrew Hay May 1 (Reuters) - For the first time in decades, a radio-collared endangered Mexican wolf crossed from the U.S.

For the first time in a century, biologists have documented a gray wolf in Los Angeles County over the weekend, a sign that these predators that were eliminated from the state by hunters are making a ...

Add Yahoo as a preferred source to see more of our stories on Google. lone gray wolf padded quietly into Los Angeles County before dawn on Saturday — and made history. State biologists say the female ...