News

Hypoxia sounds as bad as it is. It refers to an environment that is too low on oxygen to sustain most aerobic life, particularly an aquatic...

Many grassland bird species in the Bakken shale region, including some seriously declining populations, are displaced from their habitats as a result...

Populations of bats diminished by white-nose syndrome (WNS), a disease of hibernating bats, are unlikely to return to healthy levels in the near...

A hepatitis B-like virus has been found for the first time in fish. A team of USGS researchers found the virus in white sucker from the Great Lakes...

Silver carp, a species of invasive Asian carp, demonstrated a strong aversion to certain noises during a recent study on the potential use of sound...

SANTA CRUZ, Calif. — The recovery of southern sea otters appears to have taken an upturn, according to results from the annual California sea otter...

A new interactive mapping tool provides predicted concentrations for 108 pesticides in streams and rivers across the Nation and identifies which...

A series of 100 photos may reduce the risk of Native Americans and Alaska Natives being exposed to or consuming water or food containing harmful...

The term crepuscular describes events relating to, resembling, or occurring during twilight, meaning morning and evening hours. An animal described as...

OAKHURST, Calif. -- Overall fire threats to greater sage-grouse habitat are much higher in the western part of the species’ range than in the eastern...