A Chinese-led research team has documented the largest, deepest and oldest known seafloor whale graveyard in the Diamantina Zone of the southeastern Indian Ocean, in international waters west of Australia. The site extends about 1,200 kilometers, reaches depths of roughly 7 kilometers and includes 476 cetacean fossils plus five active whale falls, with some remains dated to 5.3 million years ago. The findings appeared June 10 in Nature. Researchers used the crewed Chinese submersible Fendouzh...

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