Cold Deep-Sea Temperatures Slow the Frilled Shark’s Metabolism Dramatically

This predator lives in water colder than most refrigerators.

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Deep-sea temperatures at its preferred depth remain stable year-round with minimal seasonal fluctuation.

Frilled sharks inhabit waters around 4 degrees Celsius, where metabolic processes slow considerably. Reduced metabolism supports their extended gestation periods and slow growth, allowing survival in an energy-poor environment.

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In near-freezing darkness, digestion, movement, and development operate at a pace alien to tropical marine life. A missed meal does not trigger frantic pursuit but prolonged conservation of energy.

This metabolic suppression allows the species to persist in one of the least productive ecosystems on Earth. It challenges the assumption that apex predators require constant caloric intake to survive.

Source

National Oceanic and Atmospheric Administration

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