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Dog owners have similar germs growing on their skin: a signature blend of bacteria from canines' tongues and paws. Scientists couldn't find an analogous signature for cat owners. Perhaps cats are just being selfish.

Older people are much more likely to be killed crossing the street, according to the Centers for Disease Control and Prevention. And men are more likely to be killed than women, regardless of age.

The planets orbiting far-off stars are close to Earth-sized and are a distance from their suns that makes their surfaces neither too hot nor too cold. Since launching in 2009, the Kepler telescope has identified more than 100 planets.

Bipartisan bonhomie broke out Thursday afternoon when four Democratic and four Republican senators made a case for their comprehensive immigration overhaul proposal. "America is an idea; nobody owns it," said Sen. Lindsey Graham, R-S.C. "We've got to create order out of chaos."

Memphis native Katori Hall is an actress, writer and playwright. She's won numerous awards, and her play The Mountaintop ran on Broadway, starring Samuel…

In Washington's Ward 7, where only 33 percent of students graduate from high school, a program called Life Pieces to Masterpieces is sending nearly 100 percent of its graduates to college or post-secondary education.

In this interview, celebrated Southern author Dorothy Allison looks back on her novel Bastard Out Of Carolina, which was published more than twenty years…

Boeing's 787 will be allowed to return to passenger service soon. The Federal Aviation Administration has approved Boeing's redesign of the battery system that caused serious problems, including a fire on one plane. The batteries and their housing have been redesigned and both Boeing and the FAA are confident they are safe. Melissa Block talks with Wendy Kaufman.

Much has been made of the fact that the suspects in the Boston bombings are ethnic Chechens, with links to the volatile North Caucasus region of Russia. Russian reaction to the story, however, appears to be as complex as the region's turbulent history.

The search for survivors has ended, and investigators are trying to figure out what led to fiery explosion at a fertilizer plant in West, Texas, on Wednesday. At least 14 people are confirmed dead, many of them first responders.