Detailed weight data on wolves near Yellowstone reveals that Wyoming's wolves seem to weigh much more than gray wolves in other parts of the Lower 48. Here's why ...

The gray wolf population in Washington has experienced positive growth since breeding pairs returned to the state in 2008. That positive growth was unexpectedly stunted in 2024 when the population ...

Earlier this year, one of Colorado’s translocated female gray wolves was making broad movements across the Western Slope. Then, one day, she stopped exploring on a wide scale and settled into an area ...

After being hunted to extinction a century ago, gray wolves are continuing their remarkable comeback story in California, with state wildlife officials reporting a modern record number of the apex ...