Scientists with the Wildlife Genetics Research Unit at the California Department of Fish and Wildlife have completed a genomic study of nutria, an invasive South American rodent, linking their 2017 discovery in Merced County to a population in central Oregon. This was the first genomic study of the semi-aquatic pest species that is harmful to wetland habitats and agriculture and has challenged control efforts of land and wildlife managers worldwide for decades.

The Center for Biological Diversity has sent a notice to the U.S. Bureau of Land Management and the U.S. Fish and Wildlife Service of its intent to sue the agencies for approving a logging project in western Oregon that it says will destroy and fragment the mature and old-growth forests needed by marbled murrelets.

Of the fish that had passed Bonneville Dam last spring, California and Steller sea lions consumed 3.6 percent of the spring Chinook salmon and 5.5 percent of the steelhead. Some 98 individual sea lions were responsible for this predation, according to a recently-released annual report by the U.S. Army Corps of Engineers.

Oregon Department of Fish and Wildlife staff at the Ashland Boat Inspection Station found quagga mussels on a motorboat that was being transported from Lake Havasu, Arizona into Oregon on March 21.

Common ravens are often spotted soaring above wolves in Yellowstone National Park. Researchers assumed that the scavengers were following the wolves to get their scraps, but new research reveals a twist: Ravens don’t follow wolves, they remember common hunting grounds and regularly check back for fresh meat.

California’s Wildlife Conservation Board approved $59,642,096 in grants for 27 projects across 18 counties to protect biodiversity, restore important wildlife habitats and improve public access to nature.