Learn about Earth's biodiversity and natural resources. Plus: Explore national parks and state wilderness areas.
State and local budgets for parks and environmental protection are getting hacked.
Video: Learn how a community was built with pedestrians in mind.
Understand the balancing act between conservationists trying to save the endangered Mexican wolf and ranchers who say the animals are destroying their cattle.
Watch video: A tiny beetle threatens the existence of Whitebark pine forests.
Video: Chuck talks about being a tree farmer.
A freshwater lake the size of the state of West Virginia has practically disappeared. The lessons that the Aral Sea may hold for U.S. waterways.
More than 25 percent of wild mammals are now going extinct. Here are five things you can do to help.
Coyotes in the Bronx, deer near the Capitol, mountain lions by the pool — wildlife returns to check out the old neighborhood.
How toxic chemicals are turning male frogs into females.
Audubon Society's annual count is the country's longest-running wildlife census and a great way to determine the health of bird populations nationwide.
Pine bark beetles are killing millions of acres of pine trees throughout the American West.
To the ornithological world, the age of now 14-year-old Spencer Hardy is irrelevant to the phenomenon he helped document.
It's believed sonar is so loud that mammals beach themselves in an attempt to get away from the noise, an extreme tactic that usually results in death.
Activist and author blogs about politics, energy and Earth's resources.
Science journalist blogs about humans and other wildlife.