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Once on the brink of extinction, Mexican gray wolves are staging a comeback. A conservation center in San Diego is helping with the effort to reintroduce them to the wild.

It's not uncommon for an outgoing governor or president to issue pardons at the end of his final term in office. But legal experts say that what former Mississippi Gov. Haley Barbour did contributes to a public perception that justice can be short-circuited.

San Diego Unified District administrators are hoping to keep scores rising in the coming year despite budget cuts.

That's the question scholar Christopher Phillips is asking in theoretical discussions at schools and cafes across the country. You can add your own amendment to the discussion.

In 1974, Columbia University professor Ehsan Yarshater began a comprehensive encyclopedia of Iranian history. Now, he's 91 years old and at the letter K. Tell Me More explores the project's scope and significance with Yarshater and contributor Ahmad Karimi-Hakkak, director of the Roshan Center for Persian Studies at the University of Maryland.

Christopher Joyce explains the science of oil drilling and what the price hike means for oil exploration. Jim Zarroli explains how oil prices will make it more expensive to drive, to buy an airplane ticket, and to manufacture anything from air conditioners to zippers.

A lot’s being said about the half-cent sales tax increase being proposed for San Diego. We break it down into three arguments for the increase -- and three against it.

An unmanned hypersonic glider developed for U.S. defense research into super-fast global strike capability was launched atop a rocket early Thursday but contact was lost after the experimental craft began flying on its own, the Defense Advanced Research Projects Agency said.

“Green Crude” was named one of the best inventions by Time Magazine. The green fuel is made by Sapphire Energy in San Diego, and it doesn’t need fresh water or farm land to grow.

The ultimate long distance traveler weighs under 20 ounces, and flies over 7,000 miles to get to its winter home, without making one stop.