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Ctenophore | by NOAA Ocean Exploration & Research
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A ctenophore with long tentacles was documented not far off the bottom at Southernmost Cone within the Pacific Remote Islands Marine National Monument.


Because of the way that light is transmitted through the water column, red light does not reach ocean depths. This means that the red of deep-sea animals actually appears black and thus is less visible to predators and prey. The red stomach of this ctenophore gives it a sort of invisibility cloak – if the ctenophore eats something that is not transparent, having a red stomach helps hide its last meal.


Learn more about the Hohonu Moana: Exploring Deep Waters off Hawaiʻi expedition:


See video of the ctenophore:


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Uploaded on November 13, 2015