The fitter you are, the stronger your brain will be as you age, which can help increase joy and improve cognitive function.

Yes, you read that right.

What good is it if all of the historical cities and natural beauty in China are covered by haze?

Prime Minister Modi's efforts aimed at tackling local air pollution, but the whole world stands to benefit.

Preference for "cleaner" male trees and plants in urban settings may trigger extra sneezing and wheezing. That's botanical sexism, says Thomas Ogren.

The biggest rodent to ever stalk the Earth lived about 3 million years ago — and it used its large front teeth the way today's elephants use their tusks.

A new study suggests that dark matter from the galactic plane may have been what really killed the dinosaurs — and it may one day threaten us.

Seeds found during an archaeological dig on First Nations land revive a long-lost varietal.

Researchers have launched a mission to find the Javan fishing cat, the rarest cat in the world.

Some of these massive beasts are familiar in form but enormous in size, while others are strange hybrids of modern-day animals.

New study from Australia suggests resurrection of extinct species could lead to a loss in overall biodiversity.

The sun, like many stars, may be a binary, meaning it could have a mass-extinction-causing 'brother.'

The Jambato harlequin frog had been feared extinct for at least the last 30 years.

At least five similar die-offs have happened before, but this is the first in human history — and the first with human help.

The giant bug, Lord Howe Island stick insect, was rediscovered in the early 2000s, and now scientists have confirmed it's in fact them.

Vaderlimulus tricki is the first horseshoe crab found in Idaho rocks of the Triassic Period, and it has an uncanny resemblance to Darth Vader.

The crest-tailed mulgara was once a common sight in New South Wales deserts before other predators edged it out of the habitat.

The U.S. Fish and Wildlife Service declared the eastern cougar extinct after it not being seen for over 80 years.

Can lost species ever become un-extinct? Many scientists believe it's only a matter of time before many extinct animals again walk the Earth through cloning.

BirdLife International has confirmed the extinction of eight bird species, including the Spix' macaw in Brazil.

Researchers discovered a Chelonoidis phantasticus giant tortoise on Fernandina Island. The last time this tortoise was seen was 1906.

Humans have driven almost 600 plant species extinct since 1750s and that number is likely much higher.

Do you have friends who are always throwing parties? We've got the tools to make them happy.

A medium-size solar flare erupted from the sun this weekend, hurling a cloud of plasma and charged particles toward Earth on a cosmic path that is expected to d

By analyzing ear wax from a deceased blue whale, scientists gained clues to years of chemical exposure.

The dream of a space-faring humanity is deep-rooted.

Climate activists call for action to strengthen the most important piece of environmental legislation in history.

The 57,000-acre San Andres Refuge, which works to restore desert bighorn sheep, launched its quest for energy independence in 2005 and has implemented several s

If fracking techniques pollute water supplies, what will happen to beer production?

A well-known Chinese solar power company has filed for bankruptcy, but this may actually be a sign of health for the industry.

Famed architect Renzo Piano completes a self-sustaining micro-home named Diogene.

Sweden is to thank (go figure) for a hot new lifestyle trend known as plogging that encourages participants to beautify cities while burning calories.

The Bramble Cay melomys lost most of its habitat to rising sea levels.

Video: A controversy over e-mails leads FOX to wonder why Obama would bother flying to Copenhagen for the climate summit. Our blogger responds.

Finally.. an iPhone app that decodes the labyrinth of climate hoaxes and skeptic psuedo-science.

Nintendo gets the lowest score on the Greenpeace Guide to Greener Electronics for its failure to address e-waste or cut CO2 emissions.

Technology may be drastically changing each year, but there are a few older gadgets you can still buy without regretting your decision later.

A scientific team from South Korea has just created the first bendable lithium ion battery.

Today's technology allows us to look deep into what was previously invisible, revolutionizing our understanding of microorganisms.

Experts aren't sure why so many Canadian lynx are turning up in Thunder Bay.

A video capturing the screech-filled feud has gone viral.

A storm chaser captured stunning clear video of a perfect tornado in Wyoming.

Boxed wine is quick becoming a favorite of eco-friendly wineries and organic wine drinkers who are starting to love brands like yellow + blue.

Try these not-too-sweet organic thirst quenchers to stay cool in hot weather.

An all-natural mix that’s wheat-free, gluten-free and made with organic ingredients.

Did you know you could be polluting the air in your house by burning candles? Learn more here.

Delightfully fizzy and well-flavored, these kombucha sodas are a healthy choice.

Websites that end with .organic will go through a verification process before they can go live.

Researchers put running, weightlifting and interval training to the test to see which one was best for the brain.

Proper exercise may lengthen telomeres, which are linked to longevity.