The man who led the Roman Catholic Church since April 2005 cited age and health as reasons he will step down at month's end.
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Scientists find surprising similarity between lizards and birds
It's not just for the birds: Air flows through the lungs of reptiles in a pattern that scientists previously thought necessary only for high-altitude flight. Full Story
( Richard Cartwright )
Tonight's TV picks: 'Scandal' amps up the crazy; 'X Factor' nears finale
Sting makes a guest appearance on 'Michael J. Fox Show
(AP Photo/(AP Photo/Srdjan Ilic)
Madonna dumps much younger boyfriend after three years
Reportedly having run its course, relationship between Madonna and dancer Brahim Zaibat ends.