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What is a barreleye fish?
Quick Answer
A barreleye fish is a deep-sea fish with a transparent head and tubular eyes. Those eyes point upward to spot prey above it.
The Full Story
Barreleye fish are among the strangest-looking deep-sea animals, especially species in the genus Macropinna. Their eyes are enclosed in a clear dome of tissue, and the eyes themselves are barrel-shaped and highly specialized. This unusual anatomy helps them detect silhouettes of prey in the dim light above. Scientists have studied them closely because their transparent head structure is a rare adaptation among vertebrates.
Key Facts
1.Eyes are tubular and point upward
2.The head has a transparent dome
3.Known from the deep ocean, especially the genus Macropinna
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Suggested video title for this topic:
"The fish with a transparent head and telescoping eyes"
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