Scientists discover vast 5.3-million-year-old whale necropolis in the deep Indian Ocean
Researchers have discovered a massive whale graveyard spanning about 1,200 kilometers along the seafloor of the southeastern Indian Ocean at depths up to 7 kilometers, containing 476 fossil whales and five active whale-fall communities. The site, located in the Diamantina Fracture Zone, is the largest, deepest, and oldest whale necropolis documented to date, with the oldest fossils dating back 5.3 million years. The discovery provides unprecedented insights into deep-sea biodiversity, cetacean evolution, and how whale carcasses sustain specialized ecosystems in the ocean's most extreme environments.
Scientists exploring the Diamantina Fracture Zone in the southeastern Indian Ocean have uncovered an extensive whale necropolis containing 476 fossil cetaceans and five active whale-fall communities at depths ranging from 4,616 to 7,001 meters. The site extends approximately 1,200 kilometers along the seafloor and represents the largest, deepest, and oldest whale necropolis ever documented, with isotopic dating confirming whale falls in the region dating back at least 5.3 million years. The research team, led by scientists from the Chinese Academy of Sciences, conducted multiple deep-sea submersible expeditions in 2023 to map and sample the site, discovering specialized communities of organisms including brittle stars, bone-boring worms, jellyfish, tubeworms, sea cucumbers, squat lobsters, and saltwater clams—many representing previously undocumented species. The findings, published in the journal Nature, reshape scientific understanding of whale-fall ecosystems and establish deep-sea floors as crucial fossil archives for tracing cetacean evolution over geological timescales. The discovery also highlights the role of whale falls in long-term carbon sequestration and deep-ocean biodiversity.
What different sources said
- New ScientistCenter
Millions of fossil whale bones found in deep-ocean ‘necropolis’
- Washington TimesRight
5 questions about the ancient whale graveyard discovered in the Indian Ocean
- BBC WorldCenter
Whale graveyard dating back five million years discovered
- New York PostRight
Scientists discover deep whale graveyard with bones dating over 5 million years old
- France 24Center
World’s largest, deepest, oldest whale graveyard discovered in Indian Ocean
- ABC AustraliaCenter
World's biggest whale graveyard found in Indian Ocean off Australia
- Nature NewsCenter
A 5.3-million-year-old deep-sea whale necropolis in the Diamantina Zone
- AP NewsCenter
Scientists discover a deep whale graveyard that is teeming with life
- Phys.orgCenter
Newfound 'whale necropolis' reveals 5.3 million years of seafloor life
- Scientific AmericanCenter
Largest whale ‘graveyard’ discovered, with skeletons spanning 5 million years
- Nature NewsCenter
A vast whale necropolis has been found
- Science (AAAS)Center
Immense whale ‘graveyard’ discovered in the deep sea
- Nature NewsCenter
Newly discovered whale graveyard dates back millions of years
- CBS NewsCenter
World's largest whale graveyard found by sub at bottom of ocean
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