A dead whale that sinks to the seafloor can support a large number of deep-sea species for decades. Reports indicate the discovery of a massive whale graveyard in the Indian Ocean, with estimates suggesting it could contain over 10 million carcasses that have accumulated over 5 million years, although the exact size and scope of the discovery are not consistent across accounts. The area, reportedly found at a depth of around 7,000 meters, is described as a vast "whale graveyard" stretching hundreds of miles.