"Congressional Republicans launched efforts Wednesday aimed at reforming the Endangered Species Act to make it more friendly for states, landowners, industry and others."

"If the levee wall is constructed, it will essentially destroy the refuge, a federal official told the Observer."

"North America hosts the richest variety of freshwater mussels in the world, and the epicenter for this biodiversity is in the southeastern United States."

"A 'biological annihilation' of wildlife in recent decades means a sixth mass extinction in Earth’s history is already well underway and is more severe than previously feared, according to new research."

"Amid renewed concern about whether chronic wasting disease can jump from deer to people, a fatal human brain condition in the same family is showing up more often in Wisconsin and nationally."

"Everybody knows about Lyme disease. But experts say the Northern United States may be in for a bad tick season this summer, raising concerns about Lyme and other scary tick-borne diseases, including the Powassan virus, which causes encephalitis and can leave people with permanent neurological damage."

"Mark D. Zabel wants to set some fires. Dr. Zabel and his colleagues are developing plans to burn plots of National Park Service land in Arkansas and Colorado. If the experiments turn out as the researchers hope, they will spare some elk and deer a gruesome death."

"Fishing and environmental groups sued the Trump administration [June 29] for concluding that Gov. Jerry Brown's (D) plan to replumb California's water system would not jeopardize key threatened species.

Brown wants to build two 40-foot-diameter tunnels buried 150 feet below ground to shuttle water around the ecologically sensitive Sacramento-San Joaquin River Delta, where the state's two main rivers meet before flowing to the ocean through San Francisco Bay.

"SALMON, Idaho -- Conservationists threatened to sue on Friday in order to block a plan by U.S. wildlife managers that strips grizzly bears of federal protection, opening them to hunting around Yellowstone National Park."