Rare 4K footage captures elusive barreleye fish swimming 600 metres below the ocean surface

The barreleye fish. PIC COURTESY/X/MBARI

Researchers recently captured rare 4K video of a barreleye fish swimming six hundred meters deep in the ocean twilight zone.

Encountered by an advanced underwater robotic vehicle, this elusive deep creature features a clear head shield protecting large eyes that rotate upward to track prey.

This remarkable high resolution footage provides marine scientists with unprecedented insight into how these unique visual adaptations help the unusual marine species thrive in dark ocean water habitats.

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