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Antarctica's Freezing Waters Host Unlikely Visitor: A Shark!
4 Mar
Summary
- A southern sleeper shark was filmed in Antarctica's near-freezing waters.
- Warming sea waters and climate change may be extending the shark's range.
- The shark possesses biological adaptations to survive near-freezing temperatures.
Marine researchers have obtained the first video evidence of a shark navigating Antarctica's frigid waters. The footage showcases a southern sleeper shark, a species not typically found in these extreme environments, gliding through the near-freezing ocean.
This unusual sighting occurred at a depth of 1,640 feet in waters around 34 degrees Fahrenheit. Scientists captured the footage in January 2025, with its release in February 2026. The southern sleeper shark, measuring approximately 10 to 13 feet long, possesses specialized tissues and a slow metabolism that enable it to withstand such cold temperatures.
Researchers theorize that corridors of warmer water may facilitate their southern movement. Furthermore, ongoing climate change and rising sea temperatures are considered potential factors driving these sharks to extend their range further south than previously documented, though it's also possible they have always inhabited the area but remained undetected.
