Expect more sultry nights as human activities that contribute to global warming cause rising humidity around the world, experts say.

Gerhard Ertl today won the 2007 Nobel Prize in Chemistry for his groundbreaking studies of chemical processes that take place on solid surfaces.

Threats remain too great for Mexican gray wolves to be released into the wild. But a zoo baby boom is fueling hopes for reintroduction.

Beehives—or even recordings of furious bees—may help African farmers defend their crops against marauding pachyderms, new research shows.

Moon shuttles, rocket racers, and Mars bases are just some of the space highlights historians will commemorate 50 years from now, experts say.

The curly-horned kouprey is not a hybrid of two related species of ox, possibly ending years of speculation about its status.

Typhoon lashes Vietnam, Russia remembers Sputnik, volcano blows in Yemen, and more.

Tree houses are becoming an increasingly popular choice for United Kingdom adults interested in romantic and eco-friendly countryside getaways.

Along the Chinese and Kazakh border, many sheepherders are abandoning their traditional nomadic lifestyle in response to desertification and economic pressures.

Modern corals may be able to adjust to acidic seas, according to a new study that found prehistoric corals were highly resilient to ocean changes.

Unless the Greek government implements strong protective measures, much of the 5 percent of Greek land burned this summer may never recover, environmental groups say.

Satellite pictures also show that the vast berg—aided by record low Arctic sea ice levels—charted a surprising course into warmer southern waters.

White-backed vultures—once plentiful in India and Pakistan—have become critically endangered. Now environmentalists are urging a ban on a common veterinary drug that may be poisoning the birds.

A volcano erupted on Sunday, September 30, in the Red Sea, collapsing part of a small mountainous Yemeni island and killing at least four people.

See the tragic results of a freak accident on an Kenyan river, and learn more about the animals' epic annual migration.