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First-Ever Video Captures Sleeper Shark in Antarctica’s Southern Ocean

Researchers are analyzing collected DNA samples to identify the species.

Overview

  • The shark was recorded at roughly 490 meters near the South Shetland Islands in water measuring about 1.27°C.
  • Scientists estimate the animal was 3–4 meters long, with video showing a slow pass before a brief dart as a skate remained still nearby.
  • The Minderoo-UWA Deep-Sea Research Centre’s remote camera filmed the encounter in January 2025 at a depth with a relatively warmer water layer around 500 meters.
  • Researchers and independent experts say this is the first verified record of a shark within the Southern Ocean south of 60°S.
  • Explanations under review include long-standing but undetected presence due to sparse, summer-only deep cameras or a possible climate-driven range shift.