World's largest egg up for auction

The rare pre-17th century, sub-fossilised Elephant Bird egg is expected to sell for $30,000-45,000 when is it auctioned in London on April 24. The

extinct Elephant Bird, a native of Madagascar, was a large bird

measuring around 11 feet in height.

LONDON, ENGLAND - MARCH 27: James Hyslop, a Scientific Specialist at Christie's auction house holds a complete sub-fossilised elephant bird egg on March 27, 2013 in London, England. The elephant bird egg is expected to fetch 30,000 GBP when it features in Christie's 'Travel, Science and Natural History' sale, which is to be held on April 24, 2013 in London. (Photo by Oli Scarff/Getty Images)
A Rare And Completely Fossilised Elephant Bird Egg On Display Ahead Of Auction At Christie's
LONDON, ENGLAND - MARCH 27: James Hyslop, a Scientific Specialist at Christie's auction house holds a complete sub-fossilised elephant bird egg on March 27, 2013 in London, England. The elephant bird egg is expected to fetch 30,000 GBP when it features in Christie's 'Travel, Science and Natural History' sale, which is to be held on April 24, 2013 in London. (Photo by Oli Scarff/Getty Images)
LONDON, ENGLAND - MARCH 27: A complete sub-fossilised elephant bird egg sits next to a chicken's egg, in Christie's auction house on March 27, 2013 in London, England. The elephant bird egg is expected to fetch 30,000 GBP when it features in Christie's 'Travel, Science and Natural History' sale, which is to be held on April 24, 2013 in London. (Photo by Oli Scarff/Getty Images)
A Rare And Completely Fossilised Elephant Bird Egg Is Displayed Ahead Of Auction At Christie's
LONDON, ENGLAND - MARCH 27: A complete sub-fossilised elephant bird egg sits next to a chicken's egg, in Christie's auction house on March 27, 2013 in London, England. The elephant bird egg is expected to fetch 30,000 GBP when it features in Christie's 'Travel, Science and Natural History' sale, which is to be held on April 24, 2013 in London. (Photo by Oli Scarff/Getty Images)

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