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flag A 3-4 meter sleeper shark was filmed in Antarctica’s freezing deep waters in Jan 2025, the first confirmed sighting in the region.

flag A sleeper shark, 3 to 4 meters long, was captured on camera in January 2025 at 490 meters depth in the Antarctic Ocean near the South Shetland Islands, marking the first confirmed sighting of a shark in the region’s near-freezing waters. flag The footage, taken by the Minderoo-UWA Deep-Sea Research Centre, shows the slow-moving shark in water just above freezing, 1.27°C, at a depth where sunlight does not reach. flag Researchers were surprised, as no prior records of sharks existed in Antarctica, though the shark likely stayed in the warmest layer of the ocean’s stratified water column. flag The discovery, made during the Southern Hemisphere summer when monitoring is possible, suggests sleeper sharks may feed on sunken marine remains and highlights limited knowledge of deep-sea life in the remote region.

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