Largest Deep-Sea Whale Graveyard Discovered

Scientists have discovered the largest, deepest, and oldest whale graveyard ever documented, a vast underwater necropolis in the southeastern Indian Ocean that has supported deep-sea life for millions of years. The findings, detailed in a research paper published on Wednesday, June 10, 2026, are based on a 2023 expedition that revealed nearly 500 whale skeletons scattered across a 1,200-kilometer stretch of the seafloor.

The graveyard is located in the Diamantina Fracture Zone, a rift valley between Australia and Antarctica, at depths reaching approximately 7,000 meters. During 32 crewed submersible dives in early 2023, researchers identified 485 whale-fall sites, including five active ecosystems where recent carcasses currently sustain marine life and 476 fossilized remains. The oldest collected skull fossil dates back 5.3 million years.

The discovery was unexpected, as the expedition's primary objectives were geological and environmental surveys of the hadal zone. Scientists observed vibrant communities thriving on the whale falls, including jellyfish, tubeworms, brittle stars, squat lobsters, bone-eating Osedax worms, and bivalve mollusks. Many of these organisms are...