Wild dromedary camels, brought to Australia in the mid-19th century to help explore and develop the outback, were left to breed and survive on their own. Now they number a million in the wild and have become pests, officials say. Video.

When is the big daylight saving time (often called daylight savings time) switchover in autumn 2009? Why do we fall back in the first place?

An Oregon town may be the first in the United States to build a tsunami shelter that could withstand 50-foot tsunamis expected to hit the Pacific Northwest soon.

Nearly as long as two buses, a blue whale washed ashore this week in California. The apparent victim of a ship collision, the beached whale is seen as an "amazing" research opportunity.

From "cannibal" water beetles to blind cave eels, hundreds of newfound subterranean animals have revealed unexpected diversity in the dry Australian outback.

In the wilds of northern Minnesota, bear expert Lynn Rogers teaches participants at a "wild encounters" camp about bear language, manners, and lifestyle—all while getting up close and personal with wild black bears. Video.

Putting a new spin on the term "nuclear waste dump," radioactive droppings from Cold War-era critters have spurred a high-tech cleanup funded by the current U.S. government economic stimulus program.

From awe-inspiring parks to "cruise ship hell"—see what 437 experts say are the best and worst of the world's most iconic travel destinations.

Team Germany was the winner in the U.S. Department of Energy's Solar Decathlon, which had 20 entries in a contest to create the best solar-powered house. Video.

Police in Australia say a blood-engorged leech, through DNA testing, led them to a man responsible for the robbery eight years ago of a 71-year-old woman.Video

Only an alligator could truly understand the allure of this thunderous "chorus." But a new study says the song may be an invitation to reptilian romantic networking.

Although they wouldn't be physically attracted to a magnet, "magnetic" tree leaves along heavy traffic routes may offer a quick, cheap way to test for air pollution, a new study says.

A steam-shrouded bison, a bikini-clad diver, a seven-year-old shepherd, and other wild wonders stalk our selection of winning pictures from the latest Banff Mountain Photography Competition.

Australia's iconic, island-like Uluru, or Ayers Rock, may soon be off limits to climbers, mainly because Aborigines see the desert sandstone formation as sacred. Video.

The Arctic Ocean could be largely ice free in summer within a decade, scientists announced today—the latest in a stream of wildly varying predictions. What does it all mean?