(PhysOrg.com) -- Flitting among the cool slopes of the Appalachian Mountains is a tiger swallowtail butterfly species that evolved when two other species of swallowtails hybridized long ago, a rarity in the animal world, ...
It is likely some of the most widespread and oldest art in the United States. Pieces of rock art dot the Appalachian Mountains, and research by University of Tennessee, Knoxville, anthropology professor Jan Simek finds each ...
New Ohio University research suggests that the rise of an early phase of the Appalachian Mountains and cooling oceans allowed invasive species to upset the North American ecosystem 450 million years ago.
The remains of the earliest European fort in the interior of what is now the United States have been discovered by a team of archaeologists, providing new insight into the start of the U.S. colonial era and the all-too-human ...
So how did the chicken cross the road? Or the raccoon, Virginia opossum, woodchuck, red fox, white-tailed deer or great blue heron?
A collaborative project involving a Kansas State University ecologist has shown that the Clean Air Act has helped forest systems recover from decades of sulfur pollution and acid rain.
(AP) -- The Midwest and Northern United States are likely to get a warmer winter, while the Southeast can expect just the opposite: cooler and wetter conditions.
National Science Foundation, Environmental Research and Education Foundation, American Coal Ash Association
Each year, tornadoes tear across the United States, causing numerous deaths and physical damage to the environment and infrastructure.
(AP) -- Vice President Joe Biden on Thursday announced the first $182 million in federal stimulus money for 18 projects to expand high-speed Internet networks in rural areas and other underserved communities.