Of bears and berries: Return of wolves aids grizzly bears in Yellowstone
A new study suggests that the return of wolves to Yellowstone National Park is beginning to bring back a key part of the diet of grizzly bears that has been missing for much of the past century – berries ...
Rare insect found only in glacier national park imperiled by melting glaciers
The persistence of an already rare aquatic insect, the western glacier stonefly, is being imperiled by the loss of glaciers and increased stream temperatures due to climate warming in mountain ecosystems, ...
Video from polar bear's neck cam shows life on ice
The first video of life on Arctic sea ice from a polar bear point of view has been released by the U.S. Geological Survey.
Study finds Emperor penguin in peril
An international team of scientists studying Emperor penguin populations across Antarctica finds the iconic animals in danger of dramatic declines by the end of the century due to climate change. Their study, ...
Invasive watersnakes introduced to California may pose risk to native species
Watersnakes, commonly seen in the lakes, rivers and streams of the eastern United States, are invading California waterways and may pose a threat to native and endangered species in the state, according to ...
US removes gray wolf from endangered list
The US government said Wednesday it is formally removing about 1,300 gray wolves in the Rocky Mountain region from the endangered species list, capping a legal battle that has dragged on for years.
Death of young killer whales raises worry about the species' survival
He's trailed them and photographed them, mapped their family trees and counted their offspring, coming to identify individuals by their markings, sometimes even ascribing personalities based on behavior.
Obama reverses Bush rule changes on endangered species
President Barack Obama on Tuesday restored rules requiring assessment by wildlife experts on the impact of government projects on endangered species, revoking the policy of the former Bush administration.
Believing in the pygmy bunny
Like the Easter Bunny, the Columbia Basin pygmy rabbit of Washington state may soon exist only in our imaginations. None have been seen in the wild since 2004. But a new breeding program is aiming to rebuild ...
Prized sea snail not at risk of extinction, federal officials say
The National Marine Fisheries Services has decided not to grant federal protection to the pinto abalone, a prized six-inch sea snail whose population has severely declined in Northern California.
Plan to delist gray wolf endangers other threatened species, researchers find
The federal government's proposal to discontinue protection for the gray wolf across the United States could have the unintended consequence of endangering other species, researchers say.
Research splits alligator snapping turtle, 'dinosaur of the turtle world,' into three species
The alligator snapping turtle is the largest river turtle in North America, weighing in at up to 200 pounds and living almost a century. Now researchers from Florida and the University of Vermont have discovered ...
US scientists to study monarch butterfly numbers for protected status
For scientist Tierra Curry, the monarch butterfly is part of the American experience.
Gray wolf travels more than 500 miles, then gets shot in Utah
Long trip, sad ending. A 3-year-old female gray wolf, after traveling more than 500 miles from Wyoming, was shot and killed in southwestern Utah after a hunter apparently mistook her for a coyote, state officials said Monday.