A chicken egg is displayed next to a sub-fossilised pre-17th century Elephant Bird egg to scale the size difference at Christie's auction house's premises in London, Wednesday, March 27, 2013. The ... more 
A chicken egg is displayed next to a sub-fossilised pre-17th century Elephant Bird egg to scale the size difference at Christie's auction house's premises in London, Wednesday, March 27, 2013. The Elephant Bird egg, which is estimated to fetch 20,000 to 30,000 pounds ($30,210 to $45,315 and 23,645 to 35,467 euro) in the forthcoming Travel, Science and Natural History sale on April 24, measures over 100 times the average size of a chicken egg, and stands at 21cm in diameter and 30cm in height. The extinct Elephant Bird species was native to Madagascar and among the heaviest known birds. (AP Photo/Matt Dunham) less 
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Associated Press | Photo By Matt Dunham
Thu, Mar 28, 2013 9:35 AM EDT