Massive graveyard of fossilized shark teeth found deep in the Indian Ocean

A graveyard studded with thousands of shark teeth is lurking nearly 3.5 miles (5,400 kilometers) beneath the surface of the Indian Ocean.

Researchers made the shocking discovery in October during a month-long expedition along the southern tip of Indonesia aboard the RV investigator (opens in new tab), a 308-foot-long (94 meters) research vessel operated by the Commonwealth Scientific and Industrial Research Organization (CSIRO), Australia’s national science agency. On the final day of the voyage, and after 26 previous attempts, the researchers sank a trawling net into the deep water hoping to catch fish as part of an ongoing biodiversity survey. Instead, they pulled up a net’s worth of hundreds of shark teeth, according to a statements (opens in new tab).

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