Scientists have uncovered a gigantic graveyard more than 745 miles long at the bottom of the Indian Ocean. The remarkable site lies more than four miles beneath the surface within the Diamantina fracture zone, a seabed terrain characterised by ridges and trenches. Researchers from China, Italy and New Zealand made the discovery, which was published yesterday in the journal Nature. Some of the fossilised remains date back 5.3 million years, generating considerable excitement among scientists worl