A yet unnamed female elephant calf stands next to its half-sister Mongu in their enclosure at Schoenbrunn zoo in Vienna September 5, 2013. The elephant was born on September 4 after 645 days of ... more 
A yet unnamed female elephant calf stands next to its half-sister Mongu in their enclosure at Schoenbrunn zoo in Vienna September 5, 2013. The elephant was born on September 4 after 645 days of pregnancy of its mother Tonga, following the first ever successful insemination of an African elephant using frozen sperm taken from a wild elephant bull in South Africa. REUTERS/Heinz-Peter Bader (AUSTRIA - Tags: ANIMALS SCIENCE TECHNOLOGY) less 
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Reuters | Photo By HEINZ-PETER BADER / REUTERS
Thu, Sep 5, 2013 7:45 AM EDT