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The Devils Hole pupfish's natural habitat is a single water-filled hole in a cave in the Nevada desert. Its numbers at one point dwindled to just 35 animals. How does it manage to survive?

With a gallon of gasoline costing $3 in much of America, many consumers wonder how the price is broken down, from oil fields, refineries, suppliers and the pump. Robert Siegel talks with Jim Haddock, vice president for retail sales of Gas America, which owns about 80 service stations and is based in Greenfield, Ind. Haddock talks about how much money the service stations are making as gas prices continue to rise.

AAA is forecasting record-high travel this weekend, when more than 50 million Americans are expected to get out of town. That could mean clogged roads and snarls at airports.

Every August, tourists converge on the eastern edge of the Tibetan plateau to watch the region's famed Khampa horsemen. The festival in Litang puts tradition on display even as modern times and government influence bring a different life to the region.

President-elect Barack Obama nominated Gen. James Jones to be his national security adviser. Best known as a former Marine commandant and supreme allied commander in Europe, Jones is part of a group of military and business leaders trying to raise the profile of energy dependence as a national security threat.

Democrats have already won special Congressional elections in Illinois and Louisiana, districts formerly held by Republicans. GOP officials are concerned about Tuesday's special election in Mississippi. Democrats are trying to take advantage of high gasoline prices and President Bush's low approval ratings to take another seat away from the Republicans.

Benny and Vickie Cox run a roadside stand in Ayden, N.C., called The Collard Shack. You won't find the green collards here that are common throughout the South. Instead, the Coxes grow yellow cabbage collards, an heirloom variety that's rare outside eastern North Carolina.

Most people are putting off big purchases during the recession — especially cars. Dealers are trying to change that with what analysts say are some of the lowest prices in a long time. But all those rebates and discounts have yet to re-kindle the market.

Florida wants to start taking mountains of waste material from phosphate mining to use in road construction. The hitch: It's mildly radioactive, and environmental groups say it poses a health risk.

Republican presidential hopeful John McCain called for a temporary lifting of federal fuel taxes in order to cut gas prices during the busy summer driving season. "The effect will be an immediate economic stimulus" for families and businesses alike, McCain says.