Learn about Earth's biodiversity and natural resources. Plus: Explore national parks and state wilderness areas.
Deciding where to live is important for the continuation of marine species, and coral and fish have evolved so that they can identify polluted areas.
A new study puts a lot of the focus on the Atlantic Ocean, but some scientists remain convinced that the Pacific has played a larger role.
One of the best ways to celebrate our first national park is to visit, but for all the armchair travelers out there, there's 'Yosemite Meditations.'
Richard Turere's solar-powered invention safely scares lions away from his family's cattle.
After enduring 3 years of drought, water conservation continues to be a major concern for Californians.
Without exposure to sunlight, the tiny organisms rely on minerals in the subglacial water and lake muck for the energy they need to survive.
The petrified forest was swallowed up by the seas thousands of years ago, but harsh winter storms provide a glimpse into prehistoric life.
Ominous and beautiful, these strange clouds tell a story.
Ribs and teeth can provide insight into the types of food, wine and even pollution that people were exposed to during their lives.
An eruption at the remote Bardarbunga volcano doesn't immediately pose a risk to any Iceland communities but it could threaten European air travel routes.
Photographer blends more than 40,000 photos into a beautiful video depicting one year in an Indiana forest.
The bottle was brewed using spring water from the Taunus Mountains area of Germany.
If you've ever wondered why mountains are often ringed by a soft saucer-shaped cloud, you'll be interested in this.
Harmful algal blooms pop up nearly every summer along the nation's coasts, often turning the water an eerie red and creating problems for marine life and humans alike.
From sea to shining sea, the United States is home to some spectacular feats of nature — but can you match the nation's wonders with their home states?
Activist and author blogs about politics, energy and Earth's resources.
Science journalist blogs about humans and other wildlife.