🌅 The Largest and Deepest Whale Graveyard Ever Found

SOURCE

Peng et al. (2026)

WHAT TO KNOW

• A new study by an international team of researchers documents the largest and deepest whale graveyard ever discovered, extending some 750 miles along the seafloor at a depth up to 23,000 feet. The team discovered the massive whale necropolis while using a deep-sea submersible to explore an area of the southeastern Indian Ocean known as the Diamantina fracture zone, coming across 476 whale fossils—the oldest dating back 5.3 million years—and five carcasses of recently deceased whales during the team’s 32 dives.

WHY IT MATTERS

• When a whale dies, their body bloats with gas, causing the carcass to float to the surface and drift with ocean currents. If and when the carcass falls to the bottom, the so-called “whale fall” becomes a food source for deep-sea creatures that can sustain an ecosystem for decades. The authors of the present study documented dozens of creatures feeding on the recent whale falls, including clams, brittle stars, and bone-eating worms. Prior to the team’s work, most whale falls were found at depths less than 13,000 feet, with the deepest known active site located at a depth of 13,800 feet in the southwest Atlantic Ocean.

CONNECT THE DOTS

• The density of whale remains measured by the researchers reached up to 760 individual carcasses per square kilometer, suggesting the entire Diamantina zone could hold more than 10 million whale carcasses. If confirmed, the megasite would be on par with famed fossil deposits like the Burgess Shale in Canada and the La Brea Tar Pits in Los Angeles. The study also found the graveyard constitutes a new carbon sink, sequestering an estimated 6.7 million tons of carbon.