Greenland Sharks Tolerate Oxygen-Poor Deep Waters

This giant survives where oxygen levels drop dangerously low.

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🤯 Did You Know (click to read)

Cold water can hold more oxygen than warm water, partially supporting their deep distribution.

Greenland sharks inhabit deep, cold waters where dissolved oxygen levels can be significantly lower than at the surface, yet their slow metabolism allows continued function.

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💥 Impact (click to read)

Most large vertebrates require high oxygen throughput to sustain muscle activity, but this species pairs sluggish movement with physiological tolerance that reduces demand.

Such oxygen efficiency demonstrates how deep sea giants can dominate habitats that would physiologically exclude faster, high-performance predators.

Source

NOAA Fisheries

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