Conservation efforts are helping some large predators reclaim ancestral habitats, a new study finds.

When the government fails to protect a public resource like a river, our hopes often fall to a loose coalition of citizen conservationists.

A new study reveals mosquito DNA in the guano of two widespread North American bat species.

Earth lost 39 million acres of tropical tree cover in 2017. That's like losing 40 football fields full of trees every minute for a year.

As Tracy Jordan famously said, 'Live every week like it's Shark Week.'

Researchers in Australia strap cameras on feral cats to track their kills.

Earth Overshoot Day is the day we go into 'nature debt,' utilizing more than the year's supply of water, forest and agricultural resources.

Some trees embark on an epic — and important — journey after they die.

Six in 10 turtle species are threatened or already extinct, according to a new study.

Even subtle changes of scenery can have dramatic effects on our mental and physical health, a growing field of research suggests.

Our planet has lost 60 percent of its vertebrate animals since 1970, but there still may be time to save the rest.

From hoarding and scattering nuts to making jerky and taking prisoners, animals use some wild tactics to stay well-fed in winter.

The British Ecological Society annual photography competition celebrates both flora and fauna.

Genetic relics from a 'ghost population' of red wolves seem to live on in these coyote-like creatures.

Extinctions are a wake-up call to protect the dwindling species that still exist.

Newly discovered remains of the Antarctic king, Antarctanax shackletoni, paint a lush picture of the Antarctica of 250 million years ago.

Meet some of the most spectacular, and secretive, squirrels on Earth.

A new study looks at the co-evolutionary 'arms race' between a brood parasite and its hosts.

Amphibians are reliable indicators of changes in ecosystems and are valuable in medical research.

One of Earth's most impressive ecosystems is in dire straits. Here are the main issues threatening this magnificent natural wonder.

Earth's species are now vanishing at rates unprecedented in human history. That matters for more reasons than many people realize.

The jaguar crept past a camera trap set up to record the elusive cats in a French Guiana rainforest.

Thirty Meter Telescope, which has faced protests and construction shutdowns, will be built in a culturally and ecologically sensitive area of Hawaii.

Millions of black 'shade balls' float on the surface of reservoirs, slowing evaporation.

Some of the smartest solutions really do lie right under our noses. In the case of Indie Energy, a Chicago-based cleantech company, the solution was buried in t

The Minewater system pulls geothermal heat from flooded abandoned coal mines.

Cloud invasion; Dubai: "beach, please"; wind wins over ethanol; Google would drill for geothermal; dolphins swarming

To tree or not to tree?; the world's first live magma observatory, by accident; more on jellyfish swarms; can nuclear power compete?; National Geographic's 2008

alternative energy sources are means of turning renewable energy into green electricity, using things like wind turbines or solar power.

Here's a hot property with three bedrooms, two baths and 17,000 square feet of space.

Shafts that haven't been closed could be transformed into geothermal boilers to produce heat and hot water for nearby communities.

With Hawaii's endless renewable energy potential, the state plans to generate 40 percent of its power from clean sources by 2030.

Geothermal heating and cooling systems are a blend of the old and the new. An ecologically and financially-efficient option.

Giant cable will allow Iceland to share its vast geothermal and volcanic energy resources with mainland Europe.

The fossil fuel industry benefits from government money, but not renewables. In a forum with T. Boone Pickens at the National Press Club, media mogel Ted Turner

In North America alone, there is enough energy trapped beneath the Earth's surface to produce 10 times as much electricity as coal currently does.

Global investment in clean energy surged 17 percent to a record $257 billion last year, according to two new reports by the U.N. Environment Program.

The eco-friendly boutique hotel is located in Napa Valley.

A closer look at the Lone Star Geyser could help scientists predict volcanic eruptions.

Iceland's ION Luxury Adventure Hotel isn't so much about the hotel itself but about the stunning, otherworldly landscapes that surround it.

Transition to clean energy meant to provide a proof of concept to other island nations in the Caribbean.

Photographer documents the sublime landscape of a bubbling Andean geyser field.

Hot springs are generally considered to be destinations of rest and relaxation, but that's not always the case!

Yellowstone National Park closed a popular road on July 10 after geothermal heat cooked the asphalt.

If you've ever wanted to visit this colorful, man-made geyser in Nevada, you may soon get your wish — thanks to the organizers of Burning Man!

The newly discovered species have been isolated from other toads for 650,000 years.

A cat's attraction to catnip has to do with a natural chemical compound in the plant called nepatalactone that also may help advance cancer research.

Drunken fruit flies may lead the way to a solution for human alcohol addiction.

Fire ants are especially efficient at filling in the ecological gaps created by humans.

The bizarre, unexplained sounds that harmed American diplomats working in Cuba may have come from the Indies short-tailed cricket.