DANTE FENOLIO / SCIENCE PHOTO LIBRARY DANTE FENOLIO / SCIENCE PHOTO LIBRARY
Telescopefish (Gigantura indica and G. chuni) are deepwater fishes with a spectacular appearance. The telescoping eyes might be used to track bioluminescent prey items in the darkness of the depths. Further evidence that these fishes eat bioluminescent prey items include a stomach with a black tissue lining. The function would be to conceal recently consumed prey items that might still be glowing, keeping the predator from becoming a prey item to larger fishes. The sharp and significant teeth undoubtedly subdue prey. One of the miraculous aspects to these species is that the larvae look nothing like the adults and a tremendous metamorphosis takes place. These individuals were trawled from the Gulf of Mexico between 1,500 and 1,200m depth, 2016. Image courtesy of the DEEPEND project.
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