REFILE - CORRECTING DATE - Twin polar bear cubs Nela and Nobby and their mother Giovanna play outside their enclosure at Tierpark Hellabrunn zoo in Munich, April 7, 2014. The cubs born in 2013 are ... more 
REFILE - CORRECTING DATE - Twin polar bear cubs Nela and Nobby and their mother Giovanna play outside their enclosure at Tierpark Hellabrunn zoo in Munich, April 7, 2014. The cubs born in 2013 are presented to media on Monday on occasion of their name giving ceremony. REUTERS/Michael Dalder (GERMANY - Tags: ANIMALS) less 
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Reuters | Photo By MICHAEL DALDER / REUTERS
Mon, Apr 7, 2014 4:31 AM EDT