Tribes and environmentalists are still awaiting a court decision on whether gray wolves will be removed from the endangered species list in the northern Rocky Mountains...

The Pacific walrus, although needing protection from climate change, will have to take care of itself for now, the U.S. Fish and Wildlife Department said on Tuesday...

Fast-tracking a renewable energy project seems to have backfired on a U.S. government agency again...

California may have earned kudos for its ambitious plan to clean up its portion of the Klamath River, but four conservation groups on Thursday said the waterway’s chinook salmon ca...

Five environmental and Native American groups collectively sued the California Department of Fish and Game on Jan...

As the world’s human population soars (it may soon hit 7 billion), animals and plants are increasingly jockeying for living space on Earth’s limited real estate...