1. They also got DNA from the egg ofthe elephant bird of Madagascar; at 160 times the volume of a chicken'segg, it is the largest bird's egg known.

2. The elephant bird evolved at a time when birds ruled the earth and probably existed on Madagascar for 60 million years until dying out in the 17th century.

3. Elephant bird was also called Aepyornis , and mainly lived in the forest of the world's fourth largest island —the island of Madagascar in Africa.

4. The elephant bird was laying eggs more than 30 cm in length and with a capacity exceeding 8 liters, equivalent to 7 times the size of an ostrich egg today.

5. At 10ft tall and weighing 1, 000lbs, the elephant bird - related to ostriches and emus - is the largest bird ever to have lived.

6. This egg is the largest one in the world, given to birth by extinct Elephant bird of Madagascar in the seventeenth century , as well as dinosaur egg, which have been found for the present.