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Humans have complicated genetic structures — not so dogs. Almost every physical trait in canines is controlled by just a few genes, which means custom-breeding a dog is only a matter of flipping a few genetic switches.

The antidepressant Prozac selectively targets the chemical serotonin. When the drug was introduced in the 1980s, it helped solidify the idea in many minds that depression was the result of a chemical imbalance. But the real story is far more complicated.

Attorney General Eric Schneiderman joined with other state attorneys general last year who were suing five large mortgage servicers. But he was disturbed by the shape of the agreement, and says banks wanted broad protection from lawsuits over other mortgage practices. So he started his own investigation.

In this satirical debut novel by Jason Heller, former president William Howard Taft gets the Rip Van Winkle treatment and finds himself caught up in a 21st-century election cycle.

The two sisters from Stockholm have a sound steeped in the traditions of American country and folk. Their new album is called The Lion's Roar.

The fraud trial of Texas financier R. Allen Stanford is scheduled to begin Monday morning in Houston. Stanford is charged with running a $7 billion Ponzi scheme. Stanford's trial has been delayed repeatedly, in part because he's fired his legal teams multiple times.

Over the past half-century more than 20 million acres of U.S. farmland were transformed into housing developments. With new home construction all but stopped, farmers in many areas are buying or leasing land once slated for development and planting crops on it.

The two men who helped turn the BlackBerry into a device many people can't live without have stepped aside. Research in Motion is the company behind the BlackBerry and Sunday its co-CEOs resigned. They were under a lot of pressure as investors wonder whether the Canadian firm can turn itself around and compete better with flashier phones like the iPhone.

The Florida primary on Jan. 31 is the next nominating contest in the GOP presidential campaign. On Saturday, Newt Gingrich won the South Carolina primary. On Sunday, he was saying it's now a two-man race between Mitt Romney and himself.

Tens of thousands of people are attending the Jaipur Literature Festival in India — including many international literary stars and Oprah Winfrey. Author Salman Rushdie was invited but decided not to attend after a warning that hit men would be after him. Rushdie wrote The Satanic Verses which has been banned in India for more than 20 years.