Learn about Earth's biodiversity and natural resources. Plus: Explore national parks and state wilderness areas.
A stirring video explores smooth, slowly eroded landscapes as 'artwork of monumental proportions.'
While mercury levels are dropping slightly, the metal can build up to toxic levels in animals over time. This can have effects on the food chain, including the seafood humans eat.
While a few of these natural wonders formed as a result of meteors raining down through our atmosphere, many more were skillfully crafted by the volcanic hands of our own Mother Earth.
Catch a glimpse of the cloud-streaked sky over Mt. Rainier through the pine trees.
Conservation photographer Paul Hilton found something truly disturbing during a trek with a team anti-poaching rangers -- but also something truly inspiring.
The Rose of Jericho earned itself the nickname 'resurrection plant' because it’s one of the most resilient plants on the planet. [Video]
Even the crow can't seem to believe his luck when a bear pulls him out of the water and doesn't eat him.
The asteroid impacts could also explain the mysterious zircon minerals.
Were the craters caused by melting ice? Are they sinkholes that just happen to be very round?
Located on nearly 19.3 million acres of tundra in the northeast corner of Alaska, this natural treasure is the largest and one of the most remote refuges in the United States. It's also one of the most threatened.
This versatile fiber can keep you looking good or speed you down the highway.
A new study reveals eye-opening statistics about the health benefits of our arboreal cohabitants.
As you zip down the highway, take a closer look at the shrubbery and grass. This roadside greenery soaks up a lot of carbon, and with better management, it could soak up a lot more.
A drop in biodiversity before the asteroid hit serves as 'cautionary tale' for humans and our effect on the ecosystem.
This 12-square-mile island has a population of less than 900 people, and it's exactly where you want to go when touring the Aran Islands.
Activist and author blogs about politics, energy and Earth's resources.
Science journalist blogs about humans and other wildlife.