Researchers discovered a 5.3 million-year-old whale graveyard in the Indian Ocean's Diamantina Zone.
The site spans 1,200 kilometers and contains 476 fossils, including a new extinct species.
The graveyard includes active whale falls teeming with diverse, potentially new deep-sea organisms.
Topography of the Diamantina Zone likely contributes to the accumulation of whale carcasses on the seafloor.