Facts about Stoplight Loosejaw

1. 06

   Red light production in stoplight loosejaws requires a chlorophyll-like pigment in their photophores, an adaptation unique among deep-sea fish for generating wavelengths below 500 nanometers.

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2. 05

   Malacosteus niger possesses a transparent head with tubular eyes that can rotate upward independently, enabling simultaneous downward hunting and upward predator detection.

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3. 04

   At depths between 600 and 2000 meters, stoplight loosejaws consume lanternfish and hatchetfish that comprise roughly 70 percent of their diet in the mesopelagic zone.

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4. 03

   Specimens of Malacosteus niger collected from depths exceeding 2000 meters show a tubular eye structure that rotates upward to view prey silhouetted against bioluminescent displays above.

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5. 02

   The stoplight loosejaw's mouth can unhinge to nearly 120 degrees, allowing it to swallow prey almost as large as its own body.

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6. 01

   Bioluminescent photophores along the stoplight loosejaw's lower jaw can produce red light invisible to most deep-sea organisms lacking specialized vision.

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