MBARI Barreleye Fish Translucent Transparent Head
Researchers at MBARI (Monterey Bay Aquarium Research Institute) have managed to capture rare footage of the barreleye fish with their remotely operated vehicle Ventana. This bizarre creature can be found in the ocean’s twilight zone (2,000 to 2,600 feet), but what stands out most is its translucent head. Read more for the footage and additional information.

Why are its eyes looking upwards? This maneuver allows it to quickly spot small crustaceans trapped in the tentacles of siphonophores. However, when it starts eating, the eyes rotate beneath the dome of transparent tissue. Researchers stumbled upon this creature by accident when aquarist Tommy Knowles and his team were using ROV Ventana to collect jellies and comb jellies for the Aquarium’s upcoming Into the Deep exhibition.

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MBARI is working with the Aquarium to bring the deep sea to you next spring. Into the Deep will bring you face-to-face with deep-sea denizens like bloody-belly comb jellies, bubblegum corals, and Japanese spider crabs,” said the researchers.

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