Massive Whale Graveyard Discovered in Indian Ocean Floor

Researchers have identified an unprecedented whale "graveyard" spanning a 750-mile stretch of the Indian Ocean floor within the Diamantina Fracture Zone. Discovered by a team of Chinese scientists using crewed submersibles, the site contains nearly 500 whale skeletons. These remains, resting at depths of approximately 23,000 feet, represent a significant geological and biological find, offering a window into five million years of evolutionary history.

The discovery is particularly notable for the diversity of the remains, which range from relatively recent "whale falls"—where carcasses still support active, specialized ecosystems of scavengers and microbes—to ancient, fossilized bones. While some skeletons are currently being consumed by deep-sea organisms, including potentially undescribed species of worms and crustaceans, hundreds of others have fossilized over millions of years due to the unique environmental conditions of the seafloor.

This site provides a rare, long-term record of marine life, with collected samples dated between 120,000 and 5.26 million years old. Because sediment accumulates extremely slowly in this region, these fossils have remained exposed for eons, offering paleontologists a unique opportunity to study the evolution of whales and the long-term dynamics of deep-sea ecosystems. The find is expected to significantly advance our understanding of how whale populations have shifted and adapted over millions of years.