An fossil egg of elephant bird with diameter of 0.3 meter which is close to the size of 100 eggs will be sold by auction in western Sussex England. The egg , known as the biggest one around the world and native to Africas Madagascar, will be sold 50,000 pounds(about RMB510,000). With its height over 3 meters and weight over 450 kilometers, Elephant bird is a giant and incapable of flying bird, belonging to strthiniformes, aepyornithidae,aepyornis. The birds mainly live in the forest of Madagascar in Africa and live on plant. However, elephant birds became extinct as early as 16th century. The bird had been once considered the biggest bird in the world, and had been surpassed by phorusrhacidae until 2006.endprint